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I’ve used both and both come out dark at 4K miles
Conventional 5w30 replace every 4K miles
If you are not losing coolant then you are fine
Braided hose will be fine
The air filter will create an air leak causing a cel code
Sounds normal
Doesn’t have to be in neutral to be towed with dolly
Radiator only turns on when computer tells it to
I’d say your egr circuit needs cleaning
Tires are too wide affecting mileage
Yes bad
Check battery voltage
Dead 12v battery
Correct
Any air in the inverter?
Check your 12v battery
Need new battery 12v
might be the shifter gone bad
Sounds like shocks
Get a new battery