GulfTEC dexos1 Synthetic Motor Oils are designed to resist high temperature breakdown, extending the time and mileage between oil change intervals. APPLICATIONS: GM requires dexos1 quality motor oils for use in all Buick, Chevrolet, Cadillac and GMC vehicles starting in 2011 model year. They are also an excellent choice for previous model year vehicles produced by GM. GulfTEC dexos1 Synthetic Motor Oils are recommended and suitable for use in all passenger car, sports utility vehicles and light duty trucks operating on gasoline specifying API service category SN, SM, ILSAC GF-5, GF-4, Chrysler MS-6395M, Ford M2C930-A (5W-20) and Ford M2C929-A (5W-30).
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