If asked what you wanted for piston rings in your engine build, would you know how to answer? Piston rings have the most important job in your engine. We will get arguments on this one because there ...

Rislone Compression Repair with Ring Seal is a proprietary blend of petroleum additives developed specifically for higher-mileage engines suffering from decreased or uneven compression. Fills ...

Q: I have a 1978 Kawasaki KZ650 that I got in trade for a surfboard. The bike didn't run when I brought it home, but after some cleaning, tinkering, and rebuilding, I got it started. I removed the ...

It’s not just the mega-mileage ’75 F-100 blowing blue smoke out the tailpipe any more. Over the past decade a large number of low-mileage, late-model car and truck engines have been consuming ...

For more than a century now, automotive engineers have struggled with an unavoidable balancing act when it comes to engine compression. Now, thanks to an innovation from Infiniti, they may get to ...

We may receive a commission on purchases made from links. While browsing auto repair and maintenance tools at your local parts store, you've likely come across compression testers like the Orion Motor ...

A gasoline piston engine that can dynamically change its compression ratio —that is, the amount by which the piston squeezes the fuel-air mixture in the cylinder—has long been a holy grail of engine ...