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2025 C8 Z06/7/E-Ray of the Year Finalist - Unmodified
2023 C3 of the Year Finalist - Unmodified
2021 C8 of the Year Finalist Unmodified
2020 Corvette of the Year Finalist (performance mods)
2019 C1 of Year Winner (performance mods)
2017 Corvette of the Year Finalist
2016 C2 of Year
2015 C3 of Year Finalist
Save your money and buy any over the counter Diesel rated motor oil like a Shell Rotella. You will get the same level of protection at a fraction of the price.
I just bought a case of gallons Shell Rotella 15-40. It is 6 sealed bottles and I know they are at least 4 years old. Rating on the bottles is CH4, CG4/SI. What do I have?
I just bought a case of gallons Shell Rotella 15-40. It is 6 sealed bottles and I know they are at least 4 years old. Rating on the bottles is CH4, CG4/SI. What do I have?
You have the older, hi-concentration stuff and it's good. The last of the older, hi-conc stuff was "CI4 Plus" ... the reduced version for 2007 is "CJ" and remain a very good oil w/ plenty ZDDP in it.