The guys at Muscle Car Review show you how to check engine compression with the latest tools. Check it out only at hotrod.com or the October 2011 issue of Muscle Car Review Magazine.

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!

Late-model engine designs have come a long way in the engineering of pistons and cylinder heads to improve combustion efficiency, allowing higher-compression engines to run on regular gas.

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

All parts must be checked with close inspection and tolerances. Pistons, for example, can be off significantly, adversely affecting compression and piston-to-cylinder head clearances.