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  1. V

    Update: 5W-30 & Heavier Recommended RoTW

    It is a varnish left on the surface. A good oil does not leave one. Could be a problem only in hot turbo engines, like that one. N/A engines run pretty cold, they are forgiving for the oil quality.
  2. V

    Update: 5W-30 & Heavier Recommended RoTW

    This is Mobil 1 0w40 ECF in my European engine that underwent a full rebuild about 2.5 years ago. All parts were hot tanked and cleaned to metal. The car was not driven a lot, so this is about 6k miles and 2 oil changes only. In my opinion it is pretty dirty and gets dirtier with every oil...
  3. V

    Update: 5W-30 & Heavier Recommended RoTW

    Yes, Red Line is thicker (look at the cSt numbers): 0W20 Motor Oil - https://www.redlineoil.com/0w20-motor-oil vs PETROLEUM QUALITY INSTITUTE OF AMERICA TEST PROGRAM - http://pqiadata.org/Toyota_0W20.html 5w30 is even thicker, I don't object that fact ;)
  4. V

    Update: 5W-30 & Heavier Recommended RoTW

    Yes, the heavier the oil the thicker the oil film. I wanted to point at the thicker Red Line's oil film while staying within recommended 0w20 viscosity. On the other hand, Toyota has relatively a lot of moly, which helps with the wear, however does not do any noise cancelling, like thicker oil...
  5. V

    Update: 5W-30 & Heavier Recommended RoTW

    On my brand new truck I've switched to Red Line 0w20 at 3k on odo and then went back to Toyota 0w20 at 16k. The main reason for going back was my Volvo engine I was rebuilding after exhaust valve failure. But speaking about 0w20 oils in 3UR-FE... When Red Line has been drained on a slightly...
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