Anonymous wrote:
Anonymous wrote:Mine are both every six months or 5,000 miles, whichever comes first. Truck is 3,000 miles with regular towing and/or driving on dusty dirt roads.
I read an article once, written by a recently retired Exxon petroleum engineer who explained advances in motor oil formulation were such that doing anything more than the manufacturer's recommendation does nothing for your car, but does contribute to his pension fund.
Find your manual as noted above.
At least every 5,000 miles. You don't want oil passages to get blocked. Don't care what the oil service light says.
European cars will often say 10K or more for the "Umwelt" because they include oil changes in the initial cost of buying the car and it's out of their pocket to change the oil for the first several years.
When you start getting a quiet ticking, it's because you followed their recommendation, the oil passages get plugged up and the valve lifters get worn out. It gets worse with time.