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, ...

The engine is the most important part of your car, so you better take good care of it. The engine is the most important component in your car. If it fails, not only does your car not function, but ...

Anyone remotely familiar with diesel engines understands the importance of oil and coolant, as they are the lifeblood of the powerplant. Oil lubricates, water cools—and one without the other typically ...

Q My daughter has a 2004 Monte Carlo SS with the 3.8-liter motor. It uses about two quarts of oil between 3,500-mile changes. At the last oil change, the shop wanted to flush the motor, saying it ...

Dear Tom and Ray: 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 ...

Dear Car Fix: I have a 2004 Kia Spectra, a four-cylinder with 54,000 miles, and a 2009 Kia Rondo, six-cylinder with 4,500 miles. So obviously they are not driven much. Recently I went to the local car ...

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 ...