I change my vehicle with conventional oil every 3,000 miles and my newer F150 with synthetic oil every 5,000 miles. Never had any issues. Always change the filter at the time of the oil change.
My vehicle has never sat idle for 12 months (or driven less than 3,000 miles in that time), but I also, subscribe to the belief that oil should be changed at least every 12 months. It’s a relatively inexpensive insurance policy given that some car engines now cost upwards of $10,000 to replace.
|