What Kind Of Damage Can Starter Fluid Do To A Diesel Engine?

Proper diesel engine maintenance doesn't just involve staying on top of basic upkeep tasks. If you own a vehicle with a diesel engine, and you'd prefer to keep that engine in good condition, you should also know what can damage it. For example, if your engine won't start easily, particularly in cold weather, your impulse might be to grab a can of starter fluid. But don't make this mistake; although there may be exceptions in which it's safe to apply starter fluid to a diesel engine, generally, this error can cause serious damage.

One of the main problems with diesel engines and starter fluid (also known as starting fluid or ether) is that it's easy to ignite. This is a volatile quality in any circumstance. In fact, starting fluid's inflammability is one of the reasons it's often considered something that should never be applied to any type of engine in excessive quantities.

In a diesel engine, the fact that starting fluid can easily ignite is especially hazardous. As the piston compresses the air, heating it up, the rise in air temperature can cause starter fluid to ignite and detonate early. The force of this detonation may thus be absorbed by the piston and other components. This can result in various types of damage to a diesel engine.

It's probably easy to imagine how starter fluid detonating within an engine can cause problems. Types of damage often associated with using starter fluid in diesel engines include piston damage, broken rings, and damaged connecting rods. Some owner's manuals for vehicles with diesel engines also indicate that using starter fluid in them can damage the fuel injector.

Generally, any component sufficiently close to the detonation when starting fluid ignites may be at risk of sustaining the kind of damage that could lead to catastrophic engine failure. Someone standing too close to the engine when starter fluid ignites may also be at serious risk of injury.

Always consult the manufacturer's instructions and guidance to better understand how to keep your diesel engine running properly. It's worth noting that there are instances when a manufacturer might indicate it's safe to use starter fluid with a diesel engine under specific circumstances. That's the only time when it may be acceptable to get a diesel engine started with the help of ether.

You might also be researching this topic because you don't currently own a vehicle with a diesel engine, but you're thinking about purchasing one. If so, it helps to familiarize yourself with some of the general pros and cons of diesel engines. You need to appreciate both the advantages and disadvantages of diesel engines to know if a vehicle with such an engine is right for you. Just remember that you'll optimize your diesel engine's performance and lifespan if you know how making mistakes like using starter fluid can damage it.