oil gm 5w30
#5
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Member Since: Oct 1999
Location: Charlotte, NC (formerly Endicott, NY)
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As long as it has the Dexos1 or Dexos2 certification label and is the correct weight it is fine. A Dexos1 oil at the correct weight works since the C7s initially required Dexos1. The 2019s required Dexos2 ESP 0W40 but could still use Dexos1 5W30 for street usage. For track usage, Dexos2 ESP 0W40 could be used as well as M1 15W50 although M1 15W50 couldn't be used on the street.
Bill
Bill
#6
Melting Slicks
https://www.gmdexos.com/brands/dexos1/index.html
#7
Melting Slicks
FYI - Learn all about the new Mobil 1 Supercar oil for the LT6, under the new dexos®R standard, and how you can use it in your 1993+ Corvette
https://www.mobil.com/en/lubricants/...supercar-0w-40
https://www.mobil.com/en/lubricants/...supercar-0w-40