Your car’s engine is arguably one of the most important assemblies under the hood. It is responsible for converting fuel into energy, and harnessing that energy for propulsion. It accomplishes this task through a 4-stroke combustion process that relies upon the seamless operation of dozens of other components. Your fuel injectors, oxygen sensors, pistons, and spark plugs are a few of the many parts involved.

Over time, the individual components that make up your engine will suffer wear and tear, and begin to fail. While these parts can be replaced to keep your vehicle on the road, age will eventually take its toll; at some point, you’ll need to replace the entire assembly. The key is to make it last as long as possible. In this article, we’ll take a closer look at the factors that can shorten your engine’s life.

Insufficient Supply Of Oil

Oil is important for two reasons. First, it’s necessary for the lubrication of your engine’s moving parts. During operation, the bearings, rods, and pistons create intense heat. If there is insufficient oil, these components will eventually seize, causing your engine to fail.

The second reason oil is important is because it transfers heat away from the assembly. Here too, a sufficient supply is critical. Otherwise, heat would build up within your engine and cause it to overheat.

You should manually check your oil level every two or three weeks. If, for some reason, the level is low, replenish it. If you notice the level regularly declines more quickly than it should, have a mechanic check for leaks.

Lack Of Ongoing Maintenance

Maintenance in the context of your car’s engine requires very little manual effort. It’s mostly a matter of following the service intervals listed in your owner’s manual and addressing problems when they occur. Regular maintenance includes changing the oil every 5,000 miles, replacing the spark plugs every 50,000 miles, and changing the timing belt every 60,000 miles. These intervals are merely guidelines and should be considered secondary to the recommendations in your owner’s manual.

Fuel, Compression, And Spark Problems

Your engine’s operation depends largely on fuel, compression, and spark. If too much fuel is delivered to the combustion chamber, the air-fuel mixture will be too rich. If too little fuel makes it into the chamber, the mixture will be too lean. Both circumstances can lead to detonation. The air-fuel mix ignites in an erratic fashion, causing damage to the cylinder’s piston.

Compression is necessary for your engine to create a sufficient amount of pressure within the combustion chamber. This pressure allows the fuel to burn smoothly during ignition. If there is a significant compression leak, your engine will be less capable of burning the fuel efficiently. This can lead to misfires, hard starting, and a reduction of output.

When the air-fuel mixture in your cylinder’s combustion chamber has been compressed, it requires a spark for ignition. Most people believe the spark plug is solely responsible for delivering this spark. In reality, there are several components involved with passing the voltage on its way to the spark plug. The ignition coil, switch, and distributor cap are among the parts that can fail to deliver sufficient voltage.

When It’s Time For A Replacement

At some point, you’ll need to either replace your car’s engine or retire your vehicle. The assembly can be rebuilt if the framework is still in good working order, but even then, a remanufactured unit may be more appropriate. This is especially true for older assemblies that pose a risk of failing in the near future.

The alternative to a rebuilt or remanufactured unit is a brand new crate engine. While the warranty will usually be much longer, the price for a crate assembly is much higher.

The key is to do everything you can to make sure your engine lasts as long as possible. Periodically check the oil level. Perform routine maintenance and stick to the service intervals listed in your owner’s manual. If you do these things, you’ll prolong the life of your vehicle’s engine.

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