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XL 5W-20 Synthetic Motor Oil


  • Maintains its fluidity (viscosity) under the most extreme conditions.
  • Some oils break down and significantly increase in viscosity after extended periods of high-temperature operation. These changes can cause excessive oil consumption, engine deposits, accelerated wear and difficult cold-starts.
  • GM Oxidation and Deposit (GMOD) Test consists of a 5.7L V8 engine running at 293ºF (100º hotter than normal) for 100 hours. Severe operating conditions test an oils ability to control viscosity increase, deposits and oil consumption.
  • 64 percent more protection against oil breakdown than required by the GM dexos1® Gen 2 specification, ensuring protection in extreme temperatures.