oil brand

  1. A

    oil Viscosity for hot wether.

    My father have 2012 yukon 5.3L and GMC recommending 5W30 dexos grade for their engine. however, he used to change it to this viscosity until the engine started to get older (after maybe 5 years) he changed to 10W30 until today. After 13 years and 270000km (167000mi) the engine valve lifter...
  2. Hashiriya

    13 yukon Denali new owner drivetrain questions

    Hello, just a few question. 13 Yukon Denali 6.2 awd. What transmission are these equipped with? I’ve done some research and I want to say it’s a 6l80 but I could be wrong. Also. At 120k miles, I want to do a drain and refill of the trans fluid. Called the dealer when purchased and they had no...
  3. ron81

    Which engine Oil to use ? no dod delete yet, just using OBD device to keep V8

    Hello there ! Hope you all are rocking well:) I have few questions to clarify and suggestions needed : Recently brought the Yukon and had to do transmission rebuild :( now worried for lifters: 2018 Yukon XL SLT 5.3L 95K miles No DOD delete yet, recently started using OBD device to keep V8...

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