supercab78

I guess I'll split the difference and run 7 qts. and keep a good eye on it for now.

I can't find any of my receipts to check. I'm positive it's not a 4.3 (v6). I drained two quarts out and it still reads about a 1/2 inch high. Before that it would be about an inch plus high on the stick. I guess it's possible I used up 2 quarts in 4000 miles! Sure as hell hope not though. Truck only has 33,000 miles.

My free oil changes are used up. I'm not new at this as I've been changing oil for 45 years. In the 70's it was also costumer cars. Here is what I'm talking about. I drain a warmed up block for a good 10 minutes, change the oil filter. I even checked for a possible front sump drain in the pan. Didn't see one. I then add the called for 8 quarts start it, check under for leaks then shut it off. The damn oil is reading way high on the stick. As I'm pouring the old oil in the empty jugs it measures up to about 6 quarts (and it was not reading low prior to the oil change) . Can anyone smarter than myself explain this to me? Thanks.