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Gear Lube to Use in a Newer Corvette
Does Mobil 1 Synthetic Gear Lube LS 75W-90 meet GM spec #88862624 for Dexron LS 75W-90? Will its use in my C6 2008 Corvette void its warranty?
-- Robert Sullivan, Melbourne, FL
No, it does not meet this spec. The GM spec product is designed with a very specific level of limited slip (LS) additive to provide optimum performance for that particular vehicle. Having said that, Mobil 1 Synthetic Gear Lube LS 75W-90 also contains LS additive and it will provide outstanding protection and performance but it could require more LS additive for this specific application. We recommendation you follow the vehicle manufacturer’s recommendation.