Is your engine underperforming? Our expert shares how a diesel engine compression test could provide the diagnosis.

The diesel engine has a 23:1 compression ratio, which would quickly lead to detonation if fueled with gasoline. This needs to be reduced closer to 10:1 if the engine is to run safely on gas.

Diesel engines don’t have spark plugs; instead, they use the super-heated air created by their high compression ratios to ignite the diesel fuel as it’s injected into the cylinder.

What Are Naturally Aspirated Diesel Engines? Unlike gasoline engines, which rely on spark plugs to ignite the air-fuel mixture, diesel engines use compression ignition. This process involves ...

High compression, typical of diesel engines, is no longer needed to make the fuel ignite; in fact, the chemistry causing this auto ignition process exists only at lower compression ratios.

Mazda is first with plans for a compression (diesel) engine that burns gas. The SkyActiv-X 2019 Mazda will get 20 to 30 percent better fuel economy than a gasoline ignition engine.

Is your engine underperforming? A Cenex expert shares how a diesel engine compression test could provide the diagnosis.

It may be a main power source for modern work trucks, but these obscure diesel engines show compression ignition designs have taken lots of forms in the past.

Mandeep Singh, Surjit Kumar Gandhi, Sunil Kumar Mahla, Sarbjot Singh Sandhu, Experimental investigations on performance and emission characteristics of variable speed multi-cylinder compression ...

Most heavy-duty diesel pickups need two standard batteries to provide enough amps to crank over their high-compression engines.

There are several ways to increase the horsepower and fuel economy of your diesel truck, but here are the easiest performance upgrades to start with.