Engine oil VALVOLINE or OEM Honda
For the last 17 years I've run the recommended Valvoline Blue in all of my Cummins and so far the internals have been spotless when looking inside.
'03 GX470, had 240K miles when I bought it just over a year ago. Now on my 2nd oil change at 245K miles with Valvoline High Mileage 5W-30 full synthetic and Fram XG3600 filter. It's quiet and doesn't burn or leak oil.
Valvoline Advanced with black Wix filter!
Valvoline 5w-30 full synthetic for good cold starts in winter and a royal purple oil filter for good small particle filtration.
Use either IDEMITSU Rotary oil or Valvoline Racing Oil.
Valvoline seems to be the quietest oil.
Valvoline oil and an STP filter. Good price and convenient because its at Autozone.
I use Valvoline. I am at 300,000 miles on my 2015.
Thanks - I just ordered 2 5-qt jugs of the 5W40, less than $25 each and free shipping. We use this in my 2016 GSW and my wife's 2007 A4.
I throw valvoline 5w30 euro spec (vw 50700) cause it was cheap on Amazon.
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