Dealer says I CANNOT put 0W40 oil in my 2017 or Voids Warranty???

by Dwight

Is this true? I understood that all C7 could used the improved 0w40 on street or track? When I first came in the Service Advisor did not know anything about 0W40? This is Quality Chevrolet in Escondido,California; sells quite a few Corvettes?? Anyone else had this comment??

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Nov 10, 2018

by: Chris

Dealer is wrong. Have them search for Document ID: 5044404 #18-NA-129: Oil Change Information for Chevrolet Corvette. Corvette engineering says 0W40 is retroactive compatible with all C7 Corvettes except the ZR1 for track day events or racing. As long as its Mobile 1 ESP 0W40 Quart PN 19370233 you should be fine.

Corvette Chief Engineer Tadge Juechter answered:
Yes, the new Mobil1 OW40 Dexos 2 oil (Mobil 1 ESP Formula 0W-40) is also the recommended oil for all C7's prior to 2019. This oil was specifically developed to meet all of GM's performance requirements during engine dyno testing, vehicle road testing and performance track testing including the 2014-2018 Corvettes (all models). The Multi-grade Mobil 1 ESP Formula 0W-40 synthetic motor oil has many benefits including exceptional fast oil flow at startup along with low temperature pump-ability and exceptional viscosity/performance characteristics at high-temperature and high-RPM operating conditions. We are still refining our recommendations for the LT5 in the upcoming ZR1, so they may differ.

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