Thread: Okay to use Valvoline 5w40 MST oil?
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Old 08-20-2018, 08:37 PM   #12
Pollock
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Drives: 2018 ZL1 1LE
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Quote:
Originally Posted by Badmojo View Post
Valvoline MST 5W40 is fine for the track. See above and it is in the high performance supplement.
Correct me if I am wrong but it's okay for the standard ZL1 but the ZLE they say only 15w50 for track.
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