How Many Miles Should a Car Engine Last?

The average lifespan of a car engine is between 200,000 and 250,000 miles. However, there are a number of factors that can affect how long an engine lasts, including the type of engine, the way it is driven, and the maintenance it receives.

Factors that Affect Engine Lifespan

• **Type of engine:** Gasoline engines generally last longer than diesel engines, because they operate at lower temperatures and have fewer moving parts.
• **Driving habits:** Aggressive driving, such as speeding and hard braking, can put a lot of stress on an engine and shorten its lifespan.
• **Maintenance:** Regular maintenance, such as oil changes and tune-ups, can help to keep an engine running smoothly and extend its lifespan.

Tips for Extending Engine Lifespan

• **Drive conservatively:** Avoid speeding and hard braking, and try to keep your engine speed below 3,000 RPM.
• **Get regular oil changes:** Oil helps to lubricate and cool the engine, and it should be changed every 5,000 to 7,500 miles.
• **Have your engine tuned up regularly:** A tune-up can help to keep your engine running efficiently and prevent problems.
• **Use high-quality gasoline:** Higher-octane gasoline burns more cleanly and can help to reduce carbon buildup in the engine.
• **Don’t overload your car:** Overloading a car can put extra stress on the engine and shorten its lifespan.

Signs of Engine Trouble

If you notice any of the following signs, it could be a sign of engine trouble:

• **Knocking or ticking sounds:** These sounds can be caused by a number of problems, including worn bearings or a loose timing chain.
• **Loss of power:** If your car is losing power, it could be a sign of a problem with the engine, such as a blown head gasket or a clogged fuel injector.
• **Blue or black smoke from the exhaust:** This smoke can be caused by a number of problems, including burning oil or a leaking valve guide.
• **Leaking oil:** If you notice oil leaks under your car, it could be a sign of a problem with the engine, such as a leaking oil pan or a worn gasket.

If you notice any of these signs, it is important to have your car checked by a qualified mechanic as soon as possible. Early detection and repair can help to extend the lifespan of your engine.