Synthetic oil is used in most modern vehicles ... oil cannot get warm enough to burn off moisture and impurities. Change oil every 5,000 miles or every six months, or sooner.

“The big difference is that synthetic oil tends to last longer than conventional oil between changes—up to 10,000 miles or more,” Ibbotson says. “Synthetic oil costs about 30 percent more ...

Do one extra oil change per year,” a viewer advised. “Most technicians tell me with full synthetic oil should be good for 7-10k miles.. i never listen to them or neither the car computer..

What would be better or best concerning the interval between oil changes using 5W30 synthetic oil versus regular 10W30 or 10W40 oil? My vehicle is a 1996 Ford Ranger with 143,000 miles on it.

It’s crucial to follow the oil change intervals specified in your vehicle’s owner’s manual. Using the correct type of oil and ...