We exclusively use Mobil 1 (varying grades and viscosities) per the MFR spec and changing it at the MFR spec mileage (or time, during covid). Never any issues noted. 1985 BMW K100RS (122k miles), 2003 Boxster (177k miles), 2012 Acadia (98k miles), 2013 Jetta SEL (105k miles).
In a pinch, I used Mobil 1.
I always use Castrol on both my Honda and Volkswagen.
Mobil 1 0w-40
Last oil change (Sep 2022, 100,094 miles), I used Castrol Edge 0W-40.
Better to use cheap oil and change often than to buy expensive oil and run it out to 10k+ miles. Personally I typically use Castrol products and change my gasoline engines at 3k and Diesel engines at 5k miles.
I use Mobil 1 10w30 with zinc additives. What my local rotary shop recommends and puts in the cars they work on so I assume they know more and better than me lol
I use the castrol gtx high mile full synthetic 10w-40 and a sohn adapter with ideimitsu. I’m sure non of the name brands will hurt As long as you change it frequently.
I change every 10,000 km - 7000 mi.
Castrol or Mobil full synthetic.
To me that is much better than running any brand of oil longer.
I have ran mobil 1 0w-40 for a long time without issue but am thinking of switching to thicker this change as it's starting to leak out one of the oil seals into compressor housing.
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