Also, engine compression readings can vary depending on altitude and other factors, so it is more important to compare the cylinders to each other rather than the assumed compression number.

If your car is getting older or you feel like you may be losing some engine power, a compression tester can help sort out the problem.

We walk you through a compression test, a great way to determine the condition of your valves and piston rings.

Compression Repair, which is compatible with any four-stroke gasoline or diesel engine, does not contain any lead that could damage the inside of the engine or be burned and contaminate emissions ...

A: Is it too late to get your surfboard back? Your KZ’s engine probably needs a top-end teardown. Best guess is the compression rings are worn out or gummed up and stuck in their grooves. Either ...

Prolong Super Lubricants’ Super Heavy Duty Oil Stabilizer, which works in both gas and diesels, creates a seal around the piston rings to restore compression, slowing down exhaust blow-by and ...