Well 6 months since my last oil change for my 88 E-150, and only 1600 miles. I'd let it go a year but this past OCI was an interesting one. The van spent a lot of time in various shops trying to resolve an engine surge issue, with very little success. Two FI cleanings via the rail, and about 4 bottles of Red line FI cleaner went through it. Now that the weather is cool it is running like a top again.
I won't spend $25 on a UOA when the cost of changing the oil and filter would be about $30. So do I dump 6 qts of Edge 5W30, of let it go until spring? I say change it, but want to see what others think.
I won't spend $25 on a UOA when the cost of changing the oil and filter would be about $30. So do I dump 6 qts of Edge 5W30, of let it go until spring? I say change it, but want to see what others think.