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Old 12-29-2013, 01:19 AM   #23
gpshumway
Scooby Specialist
 
Member#: 43950
Join Date: Sep 2003
Chapter/Region: MWSOC
Location: Minneapolis, MN
Vehicle:
07 OBXT
OBP

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Quote:
Originally Posted by Uncle Scotty View Post
ya know...after the first couple thousand miles on the 0w40 when my engine was a bit LOUD....it has subsided and is pretty quiet now....but im going to a more robust oil for summer

and since THERE IS NO REASON AT ALL ON THIS PLANET to use ANY 5w30 oil ever made.....

i will continue to say that anybody who puts ANY 5w30 oil in these cars is an idiot
As always I assume you're speaking in the context of a turbo EJ, but even there I have to disagree, there are certain 5w30 oils which have excellent performance characteristics for a turbo EJ. Redline 5w30 stands up to track days as well or better than RT6 and is substantially better in the bitter cold. A smoking value it's not, but from a technical perspective it's about the best oil available for a turbo EJ.

The old SM formula of Valvoline MaxLife Synthetic 5w30 was nearly indistinguishable from German Castrol at everything but extreme cold performance and was a great value. Spec sheet, VOA and UOA info on the M1 ESP 5w30 I just put in my car indicate it's one of the best oils available, with a cutting edge additive package and excellent base stocks. It's the development platform on which the latest (SN) generation of M1 0w40 is built, see this presentation, particularly pages 31-32. The only area it might be a bit weak is drain interval, but that's still TBD.
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