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

A fundamental difference between gasoline and diesel engines is that a gasoline engine uses spark ignition while a diesel engine uses compression ignition. Before we delve deeper, let's understand ...

Check out this engine compression test, leakdown, and bubble tests. Read more only at www.highperformancepontiac.com, the official website for High Performance Pontiac Magazine!

Gasoline is more refined than diesel, and ignites more easily and quicker, resulting in more power at the cost of more fuel. Diesel engines have higher compression ratios, combust without spark ...