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GulfTEC® dexos1® Synthetic Motor Oils are full synthetic gasoline engine lubricants specially formulated to meet the requirements of General Motors dexos1® specification. All three viscosity grades are licensed and approved with GM under the dexos1™ licensing program. These premium synthetic motor oils are designed to resist high temperature breakdown, extending the time and mileage between oil change intervals. 

GulfTec dexos1 Full Synthetic 5W-30
GulfTec dexos1
Full Synthetic 5W-30
Feature and Benefits:
  • Fuel economy improvements 

  • Meets manufacturers latest warranty requirements 

  • Protection for high temperature, high performance turbocharged vehicles 

  • Enhanced rust protection for Flex Fuel Vehicles, specifically those that run on ethanol based fuel (E85) 


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 M2C947-A (0W-20), M2C945-A (5W-20) and Ford M2C946-A (5W-30). 

GulfTec dexos1 High Mileage Properties Table of Product Teste

*Refer to the vehicle’s owner manual to determine which viscosity of dexos1® is recommended for your vehicle. 

dexos1® is a trademark of General Motors Corporation. 

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