Engine oil LIQUI MOLY or VALVOLINE
I run Valvoline blue and love it. Run it in my IDI and my 454 Burb
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.
I use Liqui-Moly Special Tec 5w30 in my 328i
I use LiquiMoly 2332, it’s a 5W-40. Works great for me.
'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.
Mobil1 Truck and SUV 0W-20 or Liqui Moly Special Tec 0W-20. I've noticed that Liqui Moly really quiets the valvetrain down. 2016 GX460.
I walnut blasted my intake ports and valves at 44K miles, myself. The intake portsand valves were not too bad, but there was definitely buildup on them and was glad i cleaned them.
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.
Currently running it in my B7 S4 with no problems.
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