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I don't mean to crash this thread, but has anyone noticed that this oil is VERY similar to the M1 0w-20 SL?
M1 VI - 165
TBN - 12
Boron 250ppm
Moly 50ppm
Ca - 3,100
This was the old SL version but I bet this Amsoil add pack is very similar to what I posted above. Too bad Mobil dropped the ball and lowered the specs of the SM M1 (I'm assuming).
http://www.mobil.com/USA-English/Lubes/PDS/GLXXENPVLMOMobil1_0W-20.asp
Amsoil's pour point - -65F
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An important difference is the lower viscosity of the M1. For those who are afraid of thin oils, this is a plus for Amsoil, for an MPG nut like me, I think the lower viscosity would be a plus. The TBN, pour point and other specs on the Amsoil look good and a VOA would be interesting. When I dump my current fill of M1 0w20 on my 2004 Prius (I am at 9000 miles so far and hope to reach a 20k oci) I may give this a try, the comparison should be interesting.
Dennis
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"Amsoil could have called the oil 5W-20!"
It's my understanding that they have to label it as a 0W- if it meets those specs.
Maybe - I'm not saying it would be the right thing to do, or maybe with just a slight formula tweak it could be a 5W - but that really wasn't my point. My point was basically - If a 0W-XX oil scares you, just think of it as a 5W or learn how close they are.....just so you can sleep at night!
Amsoil 15W-40 really is a 10W......but I digress.![]()
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Take a look at the GF-4 test parameters for the Sequence VIB fuel economy test. Conventional motor oils are beating the PAO reference oil formulation by a minimum 1.5-2.5% to receive the ILSAC & API energy conserving rating.
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. . . I would expect this oil to stay in grade for perhaps 12k-15k miles, based on my experience with other Amsoil formulations. I'm quite certain that if you were to run it for 20k-25k that it would thicken to an SAE 5w-30 or even perhaps an SAE 10w-30.
. . .
The Noack volatility this 0w-20 is much better than Amsoils 5w-20, XL, which indicates they are using their top of the line PAO/Ester basestock blend in this one.