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  1. #1
    Member 01WS6475hp's Avatar
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    What Amsoil Oil do you use ?

    The original owner of my head/cam Z06 used 5w-40 auropean and that is what is still in the car. I put probably 3000 miles on it so far and it seems to really like that oil but there are so many other types like 0-30 signature series and 5w-30 and probably more. 5w-40 was really popular a while back but I dont see many using it now. Just thinking about a change. I have 2 qts of the 5w-40 still that I need to use up.

  2. #2
    Member CompSyn's Avatar
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    Jul 2008
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    Post 0w-30

    Quote Originally Posted by 01WS6475hp View Post
    The original owner of my head/cam Z06 used 5w-40 auropean and that is what is still in the car. I put probably 3000 miles on it so far and it seems to really like that oil but there are so many other types like 0-30 signature series and 5w-30 and probably more. 5w-40 was really popular a while back but I dont see many using it now. Just thinking about a change. I have 2 qts of the 5w-40 still that I need to use up.
    30-grade motor oils are right at home and specified in LS1 engines. Even ones that run 10.90s in the quarter. Don't over think the engineers by using a 40-grade motor oil. That said, go with 0W-30.

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