Synthetic oil used to be something only ... lead technician at CR’s Auto Test Center. “It may read a little low if the engine is still warm, but the important thing is that the level reads ...

While conventional oil typically needs to be replaced every 3,000 to 5,000 miles, synthetic oil can often last up to 10,000 miles or more, depending on your car and driving habits.

According to AAA, most automakers now recommend oil change intervals between 5,000 and 7,500 miles for vehicles using conventional oil. If your car requires full-synthetic motor oil, that range ...

Amazingly, all that’s protecting the moving parts inside an engine is a thin ... Lastly, oil inhibits corrosion. Dinosaur juice – or its modern synthetic counterparts – prevents ferrous ...

Oil drain interval recommendations are determined through extensive testing by OE engine ... with cheaper performance levels of engine oil.” The use of synthetic engine oils has been growing ...

Petro-Canada’s new Duron UHP 10W-30 provides improved performance and protection for heavy-duty fleets, the company said.