If a dry compression test shows a low reading in a cylinder, and a wet test raises compression significantly for that cylinder, what does this indicate?

If a dry compression test shows a low reading in a cylinder, and a wet test raises compression significantly for that cylinder, what does this indicate?

• A. Worn piston rings.
• B. Valve leakage.
• C. Head gasket leak.
• D. Fuel injector clog.

Answer: (B)