Yours truly has a neutral opinion regarding engine flushes: I believe engine flushes are only necessary when the engine has sludge buildup. Sludge is a dark and thick substance from contaminated oil, ...

I have a question about engine flushing. The other day, I went to my usual mechanic for my 3,000-mile oil change and tire rotation, and he tried to sell me on a "Bilstein Engine Flush." He showed me a ...

Car enthusiasts often refer to two types of engine degreasers, which often come neatly packaged in aerosol cans, pump spray bottles, or degreasing wipes. Solvent-based engine degreasers contain ...