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He just says he kept his oil clean and also used lucas oil stabilizer. I would say that most of the time the importance of oil brand is less significant than how frequently you keep up on it. Although specific modifications could require more specific oil but in his case he was mostly stock.

 

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Discussion Starter · #25 ·
what oil have you been using while reaching 300k miles?
I use any synthetic that is on sale. Again, I always use lucas synthetic oil stabilizer (1/2 Bottle). I pulled the motor apart and everything looked great. In fact you could still see the hash marks in the cylinder sleeves. There was no oil burn on the rockers.
 

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