Hi Guest!
Hey - did you know if you click on the title of a thread it will take you to the first unread post since you last visited that thread?
but were afraid to ask: 
STOP!! Never post your email address in open forums. Bots can "harvest" your email! If you must share your email use a Private Message or use the 
smilie in place of the real @
Pretty Please - add it to our Events forum(s) and add to the calendar! >> 
Hap Waldrop
Yoda
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I break in all motors race and street on Rotella 15/40, this article only deals with new/rebuilt engine break in and not oils used after that. As for What I run in my tranny is Mobile one motor oil in a normal gear box, and of course the fancy do gear race trannys use differnet oils, I won't even get into here because you can't run them in a street tranny. Same for the race engines, most of the oils we run you cannot buy on the shelf of your parts store because they are not intended for extended use, anything on the shelf at the parts store where it is labled racing or not is safe for extended use. AS for after break in, Castrol should be fine, David's advice on Rotella is a safe bet as well, it's good oil for the money.
OH and the Castrol you bought ten years ago is not the Castrol you're buying today. The biggest thing about all this is to use a zinc additve oil or a zinc additive for engine break in.
OH and the Castrol you bought ten years ago is not the Castrol you're buying today. The biggest thing about all this is to use a zinc additve oil or a zinc additive for engine break in.
