Motor Oil and filters

[TheSilkySmooth]

Originally Posted by Henry G.

I agree ester synthetics are superior, but I dont think its fair to says PAO synthetics aren't good lubricants. They are. Oil has come a long way in the last 20 or so years.....

If you research further and look at unadditised testing of PAO v. group II and POE and diester you will find that lowly group II oil is a better lubricant than PAO by far. PAO is not stable at high temps and will oxidise thicken and varnish. It does not solubilise important additives at all. It doesnt stick to metal being inherently nonpolar. It s probably servicable at extremely low temps with healthy and complex additisation for low stress application. Not a "race" or "sporting" oil by any stretch.