Timing and Drive Belts

On most modern cars there is two kinds of belts; timing belts and accessory drive belts. While they are similiar in nature to make up and what they do, they are very different.

Older vehicles use to have timing chains, but newer modern cars have changed to timing belts because they are much lighter, quieter, and more efficient. The timing belt is responsible for making sure the engine's crankshaft, pistons, and valves operating insync or in time. (Hence the term timing belt.)

Accessory drive belts are used to drive all the accessories that run off the front of the engine. The drive belt is responsible for using the engine's revolutions to drive the power steering pump, a/c compressor, alternator, water pump, and other belt driven accessories. For more information concerning each type of belt and when they should be changed click the links below.

Timing Belts

Timing belts are critical compenants to ensuring a reliable running engine. The timing between camshafts, valves, pistons, and the crankshaft are so precise that if it is off even just one degree, the engine may not run or worse cause severe damage. This is why it is so important that the timing belt and tensioner be in good working condition all the time.

Unfortunately, like other rubber componants, timing belts wear out and must be replaced. Most manufacturers recommend that the timing belt be replaced on schedule, as a form of maintenance. This is typically at 90,000 miles, but see our timing belt replacement guide for vehicle-specific information.

If the belt isn't changed it will eventually break. If this occurs the engine will stop running and will not restart. However, on some vehicles the engines are refered to as "interference engines."

In "interference engines", when the timing belt breaks severe internal engine damage can occur. This usually involves open valves becoming bent as they strike the pistons, which results in expensive engine damage. In worst case scenarios, the engine may need to be replaced.

If your vehicle is not an "interference engine" it is known as a "free-running engine". In these engines if the belt breaks the engine will stop running and will prevent internal damage from occuring. While you will still need to be towed to a repair facility, usually a new belt is all that is required to make the car run again.

On most cars with timing belts, the water pump is also driven by the timing belt. While it is not required, it is recommended that the water pump be replaced at the same time as the timing belt because these also wear out over time, and you can save yourself some of the cost of labor by having the two replaced at the same time.

Accessory Drive Belts

Drive belts are another important maintenance item that should be replaced on schedule before they break and leave you stranded. There are two types of drive belts that car manufacturers use. There are V-belts and serpentine belts.

V-belts are typically found on older vehicles. While they do not have the same life span as a serpentine belt, they are not as expensive to be replaced. V-belts should be replaced every three years or 36,000 miles. The incidence of failure rises sharply after three years.

Serpentine belts are what is installed on most new cars. They are more flexible and run cooler than V-belts. This helps them last longer, only needing to be replaced every five years or 50,000 miles. However these added benefits come at a price, because they are about twice as much to replace than V-belts.

What causes belts to fail?

With belts, heat and mileage are the main causes of wear. Every time a belt passes around a pulley, it bends and flexes. This produces heat, which hardens the rubber over time. The wear process is greatly accelerated if the belt is loose and slips.

The additional friction between the belt and the pulley will make the belt run hotter. After millions of journeys around the pulleys, even the best drive belt begins to suffer the effects of age.

Rubber begins to crack and fray and the internal cords become brittle.

You cannot always determine a belts condition by appearances alone. Any belt obviously cracked and frayed should be replaced.

With many of today’s bandless belts, there is no outside cover to peel lose and betray the belt’s deteriorated condition.

A belt may appear to be like new on the outside, yet be on the verge of failure because of weakened separated cords inside.

When a belt is replaced, it is important that the belt be properly tensioned. If too loose, it will slip and wear quickly.

If too tight, it may damage internal cords as well as overload shaft bearings on the accessories that it drives.

Timing Belt Replacement Guide

Just find your vehicle manufacturer below and then match up your engine that will tell you when you should have your timing belt replaced.

And if you can't find your vehicle and engine, please call us and someone will be happy to tell you when it should be replaced.

Engine Recommended Interval
1.6L Manufacturer does not recommend a specific maintenance interval
1.7L Replace every 90,000 Miles or 72 Months
1.8L* (1990-1996) Replace every 90,000 Miles or 72 Months
1.8L (Under normal conditions, inspect water pump & replace timing belt at intervals of 105,000 miles or every 84 months. If vehicle is operated at ambient temperatures under -20F or ambient temperatures above 110F, inspect water pump & replace timing belt at intervals of 60,000 miles.
2.2L & 2.3L Under normal conditions, inspect water pump & replace timing & balancer belts at intervals of 105,000 miles or every 84 months. If vehicle is operated at ambient temperatures under -20F or ambient temperatures above 110F, inspect water pump & replace timing & balancer belts at intervals of 60,000 miles.
2.5L 5-Cyl* (Vigor) Replace every 90,000 Miles or 72 Months
2.5L 5-Cyl* (2.5TL) Under normal conditions, inspect water pump & replace timing belt at intervals of 105,000 miles or every 84 months. If vehicle is operated at ambient temperatures under -20F or ambient temperatures above 110F, inspect water pump & replace timing belt at intervals of 60,000 miles.
2.5L V6* Replace every 90,000 Miles or 72 Months
2.7L* Replace every 90,000 Miles or 72 Months
3.0L* (1991-1996) Replace every 90,000 Miles or 72 Months
3.0L* (1997-2001) Under normal conditions, inspect water pump & replace timing belt at intervals of 105,000 miles or every 84 months. If vehicle is operated at ambient temperatures under -20F or ambient temperatures above 110F, inspect water pump & replace timing belt at intervals of 60,000 miles.
3.2L* (Legend) Replace every 90,000 Miles or 72 Months
3.2L* (NSX & 3.2CL) Under normal conditions, inspect water pump & replace timing belt at intervals of 105,000 miles or every 84 months. If vehicle is operated at ambient temperatures under -20F or ambient temperatures above 110F, inspect water pump & replace timing belt at intervals of 60,000 miles.
3.2L TL Under normal conditions, inspect water pump & replace timing belt at intervals of 105,000 miles or every 84 months. If vehicle is operated at ambient temperatures under -20F or ambient temperatures above 110F, inspect water pump & replace timing belt at intervals of 60,000 miles.
3.2L (SLX) Replace every 60,000 miles
3.5L (RL TL MDX & 3.5RL) Under normal conditions, inspect water pump & replace timing belt at intervals of 105,000 miles or every 84 months. If vehicle is operated at ambient temperatures under -20F or ambient temperatures above 110F, inspect water pump & replace timing belt at intervals of 60,000 miles.
3.5L (SLX) Under normal conditions, replace timing belt every 100,000 miles. Under severe conditions, replace every 75,000 miles.
3.7L Under normal conditions, inspect water pump & replace timing belt at maintenance minder symbol 4. If vehicle is operated at ambient temperatures under -20F or ambient temperatures above 110F, inspect water pump & replace timing belt at intervals of 60,000 miles.

Interference/Non-Interference

Except SLX: Interference
SLX: Free-Wheeling

Engine Recommended Interval
1.6L Manufacturer does not recommend a specific maintenance interval
Interference
1.7L & 1.8L SOHC Replace every 90,000 Miles
Interference
1.8L DOHC Replace every 105,000 Miles
Interference
2.0L Gasoline Replace every 105,000 Miles
Free-Wheeling
2.0L Gasoline Turbo Replace every 75,000 Miles
Interference
2.0L Diesel Manufacturer does not recommend a specific maintenance interval
Interference
2.0L TDI Deisel (2010) Replace every 110,000 Miles
Interference
2.2L Manufacturer does not recommend a specific maintenance interval
10 Valve: Interference, 20 Valve: Free-Wheeling
2.3L Manufacturer does not recommend a specific maintenance interval
Interference
2.7L Replace Every 105,000 Miles. (Replace tensioner every 105,000 miles. On 2001 1.8L engine, replace at 120,000 miles. On 2001-08 2.7L & 4.2L replace every 105,000 miles. On 2001-03 2.8L replace timing belt tensioner every 105,000 miles. On all other models, the manufacturer does not recommend a specific maintenance interval.)
Interference
2.8L Replace Every 105,000 Miles. (Replace tensioner every 105,000 miles. On 2001 1.8L engine, replace at 120,000 miles. On 2001-08 2.7L & 4.2L replace every 105,000 miles. On 2001-03 2.8L replace timing belt tensioner every 105,000 miles. On all other models, the manufacturer does not recommend a specific maintenance interval.)
Interference
3.0L Manufacturer does not recommend a specific maintenance interval
Interference
3.7L Replace every 105,000 Miles
Interference
4.2L Replace every 105,000 Miles
Interference
Engine Recommended Interval
2.5L Replace Every 60,000 Miles (It is recommended that the timing belt be replaced whenever the tensioner roller has been released, regardless of the belt age or condition. After the timing belt has been, a label indicating the mileage & date that service has been performed should be affixed to the cylinder head cover.)
Interference
2.7L Replace Every 60,000 Miles (It is recommended that the timing belt be replaced whenever the tensioner roller has been released, regardless of the belt age or condition. After the timing belt has been, a label indicating the mileage & date that service has been performed should be affixed to the cylinder head cover.)
Interference
Engine Recommended Interval
1.4L Replace Every 60,000 Miles
Interference
1.5L Replace Every 60,000 Miles
Interference
1.6L DOHC Replace Every 60,000 Miles
Interference
1.6L SOHC Replace Every 60,000 Miles
Interference
1.7LC Manufacturer does not recommend a specific maintenance interval
Free-Wheeling
1.8L Replace Every 60,000 Miles
Interference
2.0L DOHC (Avenger & Sebring Coupe) Under normal conditions, replace timing belt every 110,000 miles or 84 months. If vehicle is operated at ambient temperatures under -20F or above 110F replace at 60,000 mile intervals.
Interference
2.0L DOHC (Laser & Talon) Replacement at 60,000 mile intervals is recommended but not required, replace timing belt at 100,000 miles if not previously changed.
Interference
2.0L DOHC (Neon) Replace Every 105,000 Miles
Interference
2.0L SOHC (Except Breeze, Neon, ∓ Stratus) Replacement at 60,000 mile intervals is recommended but not required, replace timing belt at 100,000 miles if not previously changed.
Interference
2.0L SOHC (Breeze, Neon, ∓ Stratus) Replace Every 105,000 Miles
Interference
2.2L SOHC Replace Every 90,000 Miles
Free-Wheeling
2.2L DOHC Replace Every 90,000 Miles
Interference
2.3L Deisel Replace Every 50,000 Miles
Interference
2.4L DOHC Replace every 105,000 miles in normal service, every 90,000 in severe service.
Free-Wheeling (Valve To Valve Interference Possible If Camshafts Are Rotated Independently)
2.4L DOHC Turbo On 2007 & prior years, every 105,000 miles. On 2008-09 models, normal service, every 102,000 miles; severe service, replace every 90,000 miles. On 2010 miles, replace every 120,000 miles.
Interference
2.4L SOHC Replacement at 60,000 mile intervals is recommended but not required, replace timing belt at 100,000 miles if not previously changed.
Interference
2.5L 4Cyl. Replace Every 90,000 Miles
Free-Wheeling
2.5L V6 (Avenger & Sebring) Replacement at 60,000 mile intervals is recommended but not required, replace timing belt at 100,000 miles if not previously changed.
Interference
3.0L DOHC On 1994 & prior models, replace at 60,000 mile intervals. On 1995-96 models, replacement at 60,00 is recommended but not required, replace timing belt at 100,000 miles if not previously replaced.
Interference
3.0L SOHC On 1996 & prior models, replace every 60,000 mile intervals. On 1997-2000 models inspect at 60,000 mile intervals & replace as required, if belt was satisfactory at 60,000 miles, replace at 90,000 miles. On 2001-08 models, inspect at 60,000 mile intervals & replace as required, if belt was satisfactory replace at 100,000 miles.
Free-Wheeling
3.2L Replace Every 105,000 Miles
Interference
3.5L (Except Pacifica) On 2005-07, normal service, replace every 102,000 miles; severe service, replace every 105,000 miles. On 2008-10 models, replace every 102,000 miles.
Interference
3.5L (Pacifica) Manufacturer does not recommend a specific maintenance interval
Interference
4.0L Replace Every 102,000 Miles
Interference
Engine Recommended Interval
1.3L Replace Every 60,000 Miles
Free-Wheeling
1.6L DOHC Replace Every 60,000 Miles
Free-Wheeling
1.6L SOHC Replace Every 60,000 Miles
Interference
1.8L Replace Every 60,000 Miles
Free-Wheeling
1,9L Manufacturer does not recommend a specific maintenance interval
Free-Wheeling
2.0L Manufacturer does not recommend a specific maintenance interval
Interference
2.0L DOHC Gasoline On 1993-97 Probe, replace at 60,000 mile intervals. On 1999-2004 models, inspect every 120,000 miles & replace as required.
Probe: Interference
Except Probe: Free-Wheeling
2.0L SOHC Gasoline Replace Every 120,000 Miles
Free-Wheeling
2.2L Replace Every 60,000 Miles
Interference
2.3L Diesel (Camshaft & Balance Shaft Belts) Manufacturer does not recommend a specific maintenance interval.
Interference
2.3L SOHC Inspect Every 60,000 Miles: Replace Every 120,000 Miles
Free-Wheeling
2.5L/4 Replace Every 105,000 Miles
Free-Wheeling
2.5L/V6 On except CA models replace every 60,000 miles. On CA models, inspect every 90,000 miles & replace every 105,000 miles.
Free-Wheeling
3.0L DOHC SHO On 1990-93 models replace every 60,000 miles. On 1994-95 models replace every 100,000 miles.
Interference
3.0L SOHC Replace Every 105,000 Miles
Free-Wheeling
3.2L SHO On 1990-93 models replace every 60,000 miles. On 1994-95 models replace every 100,000 miles.
Free-Wheeling
3.3L Replace Every 105,000 Miles
Interference
Engine Recommended Interval
1.0L Inspect at 60,000 mile intervals. Replace every 100,000 miles if not previously changed.
Interference
1.3L Inspect at 60,000 mile intervals. Replace every 100,000 miles if not previously changed.
Interference
1.4L Manufacturer does not recommend a specific maintenance interval
Free-Wheeling
1.5L Replace Every 60,000 miles
Interference
1.6L (2004-07 Aveo) Inspect Every 30,000 Miles. Replace Every 60,000 Miles
Interference
1.6L (2008 Aveo) Replace Every 60,000 miles
Interference
1.6L (2009-10 Aveo) Replace Every 100,000 miles
Interference
1.6L (Except Aveo & Tracker) Replace Every 60,000 miles
Free-Wheeling
1.6L (Tracker) Replace Every 60,000 Miles: Inspect Every 90,000 Miles Thereafter
Interference
1.8L Diesel Manufacturer does not recommend a specific maintenance interval
Interference
1.8L Gasoline Manufacturer does not recommend a specific maintenance interval
Free-Wheeling
2.0L Manufacturer does not recommend a specific maintenance interval
Free-Wheeling
2.2L Diesel Replace Every 60,000 Miles
Interference
2.3L Manufacturer does not recommend a specific maintenance interval
Free-Wheeling
3.0L (Catera) Under normal operating conditions replace every 100,000 miles. If driven without engine coolant heater & under ambient temperatures of -20F or less, then inspect at 15,000 mile intervals & replace every 60,000 miles.
Interference
3.0L (Saturn) Replace Every 100,000 Miles
Interference
3.2L (Cadillac CTS) Replace Every 96 Months or 100,000 Miles
Interference
3.4L Inspect at 30,000 mile intervals, replace at 60,000 mile intervals.
Free-Wheeling
3.5L (Saturn Vue) Normal Service Every 100,000 Miles; Severe Service Every 50,000 Miles.
Free-Wheeling
Engine Recommended Interval
1.0L Manufacturer does not recommend a specific maintenance interval
Interference
1.3L Replace Every 100,000 Miles
Interference
1.5L Replace Every 60,000 Miles
Interference
1.6L (Prizm) On 1989-95 engines operated under normal service, manufacturer does not recommended a specific maintenance interval. On 1996-97 engines operated under normal service, replace every 90,000 miles or 72 months. On all engines operated under severe conditions, replace at 60,000 mile intervals.
1989-92 Prizm GSI: Free-Wheeling
1989-97 Prizm Except 1989-92 GSI: Interference
1.6L (Storm) Replace Every 60,000 Miles
Free-Wheeling
1.6L (Tracker) On 1989-94 models, manufacturer does not recommend a specific maintenance interval. On 1995-2001 models, replace every 100,000 miles.
16 Valve Engine: Interference
1.8L On 1989-95 engines operated under normal service, manufacturer does not recommended a specific maintenance interval. On 1996-97 engines operated under normal service, replace every 90,000 miles or 72 months. On all engines operated under severe conditions, replace at 60,000 mile intervals.
Interference
Engine Recommended Interval
1.2L Manufacturer does not recommend a specific maintenance interval
Interference
1.3L On 1984-85 Civic models, replace every 60,000 miles. On all other models, the manufacturer does not recommend a specific interval.
Interference
1.5L On 1984-85 Civic models, replace every 60,000 miles. On all other models, the manufacturer does not recommend a specific interval.
Interference
1.6L On 1989 & prior models, manufacturer does not recommend a specific maintenance interval. On 1990-96 models, replace at 90,000 mile intervals or every 72 months. On 1997 & later models, under normal conditions, replace at intervals of 105,000 miles or every 84 months. On 1997 & later models, replace at 60,000 mile or 48 month intervals, if vehicle is operated at ambient temperatures under -20°F or above 110°F.
Interference
1.7L Under normal conditions, replace at intervals of 110,000 miles or every 84 months. If vehicle is operated at ambient temperatures under -20°F or above 110°F, replace at 60,000 mile intervals.
Interference
1.8L On 1984-89 models, replace every 60,000 miles. On 1990-96 models, replace at 90,000 mile intervals or every 72 months. On 1997 & later models, under normal conditions, replace at 105,000 mile intervals or every 84 months. On 1997 & later models, if vehicle is operated at ambient temperatures below -20° F or above 110° F, replace at 60,000 mile intervals.
Interference
2.0L DOHC On 1989 & prior models, manufacturer does not recommend a specific maintenance interval. On 1990-96 models, replace at 90,000 mile intervals or every 72 months. On 1997 & later models, under normal conditions, replace at intervals of 105,000 miles or every 84 months. On 1997 & later models, replace at 60,000 mile or 48 month intervals, if vehicle is operated at ambient temperatures under -20°F or above 110°F.
Interference
2.0L SOHC On 1989 & prior models, manufacturer does not recommend a specific maintenance interval. On 1990-96 models, replace at 90,000 mile intervals or every 72 months. On 1997 & later models, under normal conditions, replace at intervals of 105,000 miles or every 84 months. On 1997 & later models, replace at 60,000 mile or 48 month intervals, if vehicle is operated at ambient temperatures under -20°F or above 110°F.
Interference
2.1L Replace Every 90,000 Miles Or 72 Months.
Interference
2.2L DOHC On 1989 & prior models, manufacturer does not recommend a specific maintenance interval. On 1990-96 models, replace at 90,000 mile intervals or every 72 months. On 1997 &later models, under normal conditions, replace at intervals of 105,000 miles or every 84 months. On 1997 & later models, replace at 60,000 mile or 48 month intervals, if vehicle is operated at ambient temperatures under -20°F or above 110°F.
Interference
2.2L SOHC On 1989 & prior models, manufacturer does not recommend a specific maintenance interval. On 1990-96 models, replace at 90,000 mile intervals or every 72 months. On 1997 & later models, under normal conditions, replace at intervals of 105,000 miles or every 84 months. On 1997 & later models, replace at 60,000 mile or 48 month intervals, if vehicle is operated at ambient temperatures under -20°F or above 110°F.
Interference
2.3L On 2005 & prior years, under normal conditions, inspect water pump & replace timing belt at intervals of 105,000 miles or every 84 months. On 2006-10 models, under normal conditions, inspect water pump & replace timing belt at maintenance minder symbol 4. On all models, if vehicle is operated at ambient temperatures under -20° F or ambient temperatures above 110° F, inspect water pump & replace timing belt at intervals of 60,000 miles.
Interference
2.6L On 1994-98 models, replace every 75,000 miles. On 1999-2003 models, under normal operating conditions, replace every 100,000 miles; for severe service, replace at 75,000 miles. On 2004 & later models, under normal operating conditions, replace every 120,000 miles; for severe service, replace at 75,000 miles.
Interference
2.7L On 1995-96 models, replace at 90,000 mile intervals or every 72 months. On 1997 & later models, under normal conditions, replace at intervals of 105,000 miles or every 84 months. If vehicle is operated in severe conditions where ambient temperatures of under -20°F or above 110°F are encountered, replace at 60,000 mile intervals.
Interference
3.0L On 2005 & prior years, under normal conditions, inspect water pump & replace timing belt at intervals of 105,000 miles or every 84 months. On 2006-10 models, under normal conditions, inspect water pump & replace timing belt at maintenance minder symbol 4. On all models, if vehicle is operated at ambient temperatures under -20° F or ambient temperatures above 110° F, inspect water pump & replace timing belt at intervals of 60,000 miles.
Free-Wheeling
3.2L On 1994-98 models, replace every 75,000 miles. On 1999-2003 models, under normal operating conditions, replace every 100,000 miles; for severe service, replace at 75,000 miles. On 2004 & later models, under normal operating conditions, replace every 120,000 miles; for severe service, replace at 75,000 miles.
Free-Wheeling
3.5L On 2005 & prior years, under normal conditions, inspect water pump & replace timing belt at intervals of 105,000 miles or every 84 months. On 2006-10 models, under normal conditions, inspect water pump & replace timing belt at maintenance minder symbol 4. On all models, if vehicle is operated at ambient temperatures under -20° F or ambient temperatures above 110° F, inspect water pump & replace timing belt at intervals of 60,000 miles.
Interference
Engine Recommended Interval
All Except Tuscon (1986-2006) On 1995 & prior models, replace at 60,000 mile intervals. On 1996 & later models, inspect every 30,000 miles or 24 months, replace every 60,000 miles or 48 months.
Interference
Accent (2007-2009) Normal service replace every 60,000 miles or 48 months. Severe service replace every 40,000 miles or 48 months.
Interference
Accent (2010) Normal service, replace every 90,000 miles or 108 months. Severe service, replace every 60,000 miles or 72 months.
Interference
Elantra (2007-2010) Normal service replace every 90,000 miles or 72 months. Severe service replace every 60,000 miles or 48 months.
Interference
Elantra Touring Normal service replace every 90,000 miles or 72 months. Severe service replace every 60,000 miles or 48 months.
Interference
Santa Fe (2007-2009) Normal service inspect every 37,500 miles & replace every 75,000 miles or 60 months: Severe service inspect every 25,000 miles & replace every 50,000 miles or 48 months.
Interference
Tiburon (2007-2008) Normal service, inspect every 30,000 miles or 24 months, replace every 60,000 miles or 48 months. Severe service, replace every 40,000 miles or 48 months.
Interference
Tuscon 2.0L Normal service inspect every 37,200 miles or 48 months & replace every 56,000 miles or 72 months. Severe service inspect every 32,200 miles & replace every 64,400 miles.
Interference
Tuscon 2.7L Normal service replace timing belt & inspect water pump every 60,000 miles or 48 months. Severe service inspect timing belt & water pump every 32,200 miles & replace every 64,400 miles.
Interference
Engine Recommended Interval
3.0L On 1989-93 models, replace at 60,000 mile intervals. On 1994 & later models, replace at 105,000 mile intervals.
Interference
3.3L Replace Every 105,000 Miles
Interference
Engine Recommended Interval
All (1994-2005) On 1994 models, replace every 60,000 miles. On 1995-2005 models except CA, replace every 60,000 miles. On 1995-2005 CA models, replace every 105,000 miles.
1.6L (2006-2009) Normal service, inspect every 30,000 miles or 30 months, replace every 60,000 miles or 60 months. Severe service, inspect every 20,000 miles or 20 months, and replace every 40,000 miles or 40 months.
1.6L (2010) Normal service, replace every 90,000 miles or 108 months. Severe service, replace every 60,000 miles or 72 months.
2.0L (2010) Normal service, inspect every 30,000 miles or 30 months, replace every 60,000 miles or 60 months. Severe service, inspect every 20,000 miles or 20 months, and replace every 40,000 miles or 40 months.
2.0L Soul (2010) Severe Service Every 60,000 Miles Or 48 Months.
2.0L Spectra (2007-2009) Normal service, inspect every 60,000 Miles or 48 months, replace every 90,000 miles or 72 months. Severe service, replace every 60,000 miles or 48 months.
2.0L Sportage (2007-2010) Normal service, inspect every 30,000 miles or 24 months, replace every 60,000 miles or 48 months. Severe service, inspect every 12,000 miles or 12 months, and replace every 24,000 miles or 24 months.
2.4L (2006) Normal service, inspect every 30,000 miles or 30 months, replace every 60,000 miles or 60 months. Severe service, inspect every 20,000 miles or 20 months, and replace every 40,000 miles or 40 months.
2.7L Optima MS (2006) Normal service, inspect every 30,000 miles or 30 months, replace every 60,000 miles or 60 months. Severe service, inspect every 20,000 miles or 20 months, and replace every 40,000 miles or 40 months.
2.7L Optima MG (2006-2008) Normal service, inspect every 30,000 miles or 24 months, replace every 60,000 miles or 48 months; severe service, inspect every 15,000 miles or 15 months, and replace every 27 months or 27,000 miles.
2.7L Optima MG (2009-2010) Normal service, inspect every 30,000 miles or 24 months, replace every 75,000 miles or 60 months; severe service, replace every 50,000 miles or 48 months.
2.7L Rondo (2007-2010) Inspect every 30,000 miles or 24 months, replace every 60,000 miles or 48 months.
2.7L Sportage (2006) Normal service, inspect every 30,000 miles or 30 months, replace every 60,000 miles or 60 months. Severe service, inspect every 20,000 miles or 15 months, and replace every 27 months or 27,000 miles.
2.7L Sportage (2007-2010) Normal service, inspect every 30,000 miles or 24 months, replace every 60,000 miles or 48 months. Severe service, inspect every 12,000 miles or 12 months, and replace every 24,000 miles or 24 months.
3.5L (2006) Normal service, inspect every 30,000 miles or 30 months, replace every 60,000 miles or 60 months. Severe service, inspect every 20,000 miles or 15 months, and replace every 27 months or 27,000 miles.s

1.5L DOHC Interference; 1.6L DOHC Interference; 1.6L SOHC Free-Wheeling; 1.8L DOHC Interference; 2.0L DOHC Interference; 2.0L SOHC Free-Wheeling; 2.4L DOHC Interference; 2.5L DOHC Interference; 2.7L DOHC Interference; 3.5L DOHC Interference;

Engine Recommended Interval
2.5L Under normal service conditions manufacturer does not recommend a specific maintenance interval. For vehicles operated under conditions of excessive idling & or low speed driving for long distances, replace at 60,000 mile intervals.
Free-Wheeling
3.0L Inline 6 On 1989-95 engines operated under normal service, manufacturer does not recommend a specific maintenance interval. On 1996-97 engines operated under normal service, replace every 90,000 miles or 72 months. On all engines operated under severe conditions, replace at 60,000 mile intervals.
(1992-1997) Free-Wheeling; VVT-i (1998-2006) Interference
3.0L V6 On 1997 & prior models, under normal service conditions manufacturer does not recommend a specific maintenance interval. On 1997 & prior models, for vehicles operated under conditions of excessive idling & or low speed driving for long distances, replace at 60,000 mile intervals. On 1998-2003 models, replace every 90,000 miles or 72 months if vehicle is operated under conditions of excessive idling & or low speed driving for extended ranges.
Free-Wheeling
3.3L V6 Replace Every 90,000 Miles Or 108 Months.
Free-Wheeling
4.0L On 1989-95 engines operated under normal service, manufacturer does not recommend a specific maintenance interval. On 1996-97 engines operated under normal service, replace every 90,000 miles or 72 months. On all engines operated under severe conditions, replace at 60,000 mile intervals.
Interference
4.3L Replace Every 90,000 Miles Or 108 Months.
Interference
4.7L Replace Every 90,000 Miles Or 108 Months.
Interference