Quote:
Originally Posted by Ghost18ZL1
Soooo...can someone confirm this question because it seems like everyone is confused. Ive got a 2018 ZL1 1LE with the LT4. Do I switch to the 0w-40 for daily driving (15w-50 for track)...OR...do I keep my 5w-30 for daily (15w-50) for track??? Thank you. I can't seem to get a straight answer from anyone, including my dealer.
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You CAN switch to 0w-40 for daily driving purposes if you want to, but you do not HAVE to. If you want to keep using 5w-30 for daily driving and 15w-50 for track use only, that is acceptable. The ZL1 1LE requires (as I understand it from the performance manual) the use of 15w-50 for track duty.
The 5w-30 variants that are acceptable for the LT1/4 are far more numerous and usually cheaper than the 0w-40 ESP, so there is that.