06-15-2007, 09:49 AM
You want the best? Royal Purple, then the Ford Stuff, then Mobile 1, Mobile 1 is the cheapest out of them all and the easiest to get. So, Mobile 1. If you really want to know how long you can go on an oil change get a blackstone report and pay for the extended mileage report. Anything else if just guessing. I hear the castrol stuff is pretty good but I've never used it.
The fact of the matter is you can pour in $.50/qt dyno oil in there and run it 10k miles for probably 100k miles or so and not have a single problem. The wife has a friend and whenever she comes over I MAKE her get an oil change, mazda 626, usually she has 10k or more on the oil and buys the cheapest oil she can. Car's still running. Makes me cringe every time I drain that oil, and I've been doing this for at least 2 years.
The fact of the matter is you can pour in $.50/qt dyno oil in there and run it 10k miles for probably 100k miles or so and not have a single problem. The wife has a friend and whenever she comes over I MAKE her get an oil change, mazda 626, usually she has 10k or more on the oil and buys the cheapest oil she can. Car's still running. Makes me cringe every time I drain that oil, and I've been doing this for at least 2 years.