Quote:
Originally Posted by MetroMPG
Pete: the one study I've seen which purported to scientifically demonstrate the MPG benefit of synth gear oils was done on large trucks. I just can't find it now and threw out those other two links instead after a quick search.
Christ: agreed. Those pages use weasel words talking about synth gear oils.
But by comparison, I don't think you will find the equivalent weasel words used by a major manufacturer about fuel economy benefits of synth vs. non-synth motor oil (of the same viscosity). Last time I checked, they simply don't make fuel economy claims for the motor oils. That says something to me.
|
Except if "they" are Mobil... who makes a claim based on changing oil viscosities (which should be obvious, because there is no 0W dino), and I've even heard reports that the only way you'll get the "gain" they claim is by changing your old oil to their new oil, especially if you have quick warm-ups as is, since the only viscosity change is the "cold" measurement, going from 5w or 10w to stable 0w.
__________________
"¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"
