I am thinking that you are getting a dogs breakfast of varying advice. GM is well aware of what’s required in a pursuit vehicle. Contact them. I’m betting they will not alter from their 0w20 Dexos1G2 recommendation. Meanwhile for everyone here are a few screen shots from the PPV fleet promo. Enjoy.Good Morning. I oversee a small/medium size fleet and have recently purchased a few new Tahoe's. Previously our fleet was mostly made up of Ford vehicles. My question is, with the new 5.3L engines, they require 0w20, I would like to minimize the types of oil I need on hand in bulk. Does anyone have any information on running a full synthetic 5w20 or 5w30 in these engines? I also should mention the new Tahoe's are Police/Pursuit vehicles.
Thanks in advance.
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