Drivers are walking into service bays for simple oil changes and leaving hundreds of dollars […] ...

High mileage oil sits in the same aisle as conventional and synthetic, but it promises something different: extra protection for engines that have already lived a long, hard life. I want to unpack ...

Conventional motor oil or synthetic motor oil? That is the question when getting an oil change, and it's an important one. Both are designed to help keep your engine and its various components ...

Q: I have a 1994 Toyota Celica and have always used conventional oil. Should/can I change to synthetic? Can I mix the two? Car Doctor: How to spot a 'flood' car before you buy Car Doctor: Can you give ...

Beyond the 6.0L Power Stroke’s head gasket, EGR system, and oil cooler problems lies a host of injection system issues. The high-pressure oil system used to fire the injectors is fraught with minor ...

Your car's engine won't immediately fail, make awful noises, or grenade itself from within if you give it the wrong oil. However, using the incorrect oil for long enough can cause premature wear and ...

You've heard it before. Oil is the lifeblood of your engine. The purpose of motor oil is to lubricate and protect your engine from heat and friction; the two major enemies of your engine. Without oil, ...