I recently purchased a new 2017 Tundra 5.7 4x4. I've been reading older forum posts regarding M1 vs TGMO, and I'd like to see if there was any updated information to encourage or discourage the use of TGMO over M1. I had planned on using M1, but I'm torn after seeing that TGMO might have specific properties with Toyota engines in mind. I've used M1 in my past vehicles, but I want to use the best oil for this truck. I live in Texas where the summer temperatures can reach 100+ and winters can get down to 10 occasionally. I change my oil every 5,000 miles, and I do not do any off-roading or severe driving. My biggest obstacle is trusting an oil the dealership sells and one that isn't a "name brand" such as M1 or Penzoil. Any advice or opinions are appreciated.
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