quote:
Originally posted by **** in Falls Church:
My son-in-law changed from AMSOIL 10W-30 to the 0W-30 shortly after it came out, and told me he gained between 50 and 75 miles per tankful Those (few) who keep mileage figures normally show 3-5% fuel savings.
For the extra $10 a year up front, I think it is well worth it.
Well, I run it in one car. No difference in MPG over the 10W30. IN fact no difference in the UOA from the 10W30 that was previously in the same car. Only diff, which I cannot prove, is that it may be able to go longer between OCIs say 15,000 miles over the 10W30 which, IMO is in the 10-12,000 mile range.
IMO you are better off running the 10W and halfway through draining out a quart and replacing it, still much less expensive then the $2+ difference for the 0W. No difference in wear protection, maybe in MPG but that is questionable since both are 30W which is most of your driving, hot engine.
IMO save your money and go with the regular 5 or 10 W or the series 3000 5W30 diesel which has by far the better additive package and is the same price as the 0W,or $2+ over the 10W.
The 0w was promoted (hyped by Amsoil) as superior (more profit for them and the new kid on the block) but as noted, it has not shown to be superior in the UOA. I will have another 0W report in early Jan to compare
And, the $10/year diff, well, very very few drivers can run this out a full year. I do but it is only 10-12,000 miles. So the diff is really more like $20/year min.
[ November 25, 2003, 10:58 PM: Message edited by: Spector ]