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Just acquired a 2020 GMC Canyon, 3.6 V6. Obviously calls for Dexos gen 2. However, I have several Havoline High Mileage Synthetic Technology Motor Oil 5W/30 API-SP, ISLAC GF-6A 6 qt. boxes laying around, (VOA posted elsewhere). Without starting a...
Any particular trait I should be on the look out for when filling it after install? I'm gonna' tune out MDS but still have VVT. So, I should probably stay with 5W/20, no? TIA
PFA
Calls for 5W20 but want to use a synth and squeeze every last drop of fuel mileage out of it. I'm starting to become a believer in the whole "thin oil thing" but am still a little itchy about running it in mid July. It's the missus car, so it's driven in a civil manner and is used on a 80 mile...