Mobile 1 5w-40 SUV

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May 24, 2006 | 09:38 AM

#21

SSCamaro99_3

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From: Ballwin, MO

Just on a sidebar. Delvac 1 and Rotella T are cheaper than crap at Wal-Mart (1 gallon is about $8). I am running 10W-30 Rotella T in my 108,000 mile 1998 Regal GS.

May 24, 2006 | 02:22 PM

#22

dailydriver

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From: Bucks County, Pa.

Quote:

Originally Posted by Patman

5w50 is too thick for the LS1. There is no need to go beyond a 40wt oil in these engines.

Besides, there is some speculation (and fact) that big viscosity spreads require viscosity index improvers (even in full/real synthetics) which are much more prone to shearing down than oils with less spread (i.e.; a 5W-40 is better than a 5W-50). See Patman, I did learn something over on BITOG!

May 24, 2006 | 08:35 PM

#23

dhdenney

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Quote:

Originally Posted by SSCamaro99_3

Just on a sidebar. Delvac 1 and Rotella T are cheaper than crap at Wal-Mart (1 gallon is about $8). I am running 10W-30 Rotella T in my 108,000 mile 1998 Regal GS.

Wal-Mart doesn't carry Delvac 1 from what I have seen. They carry the Delvac 1300 Super which is conventional. Delvac 1 should easily run $25+/gallon.

May 25, 2006 | 09:15 AM

#24

SSCamaro99_3

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From: Ballwin, MO

Quote:

Originally Posted by dhdenney

Wal-Mart doesn't carry Delvac 1 from what I have seen. They carry the Delvac 1300 Super which is conventional. Delvac 1 should easily run $25+/gallon.

Thanks for the info.

May 25, 2006 | 11:11 AM

#25

LtownZ28

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From: Littlestown, PA

Patman,
How does the Castrol Syntec 5w-40 and 10w-40 compare to the GC or even the Mobile 1 5w-40 turbo diesel formula? Thanks.

May 25, 2006 | 02:47 PM

#26

Patman

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From: Mississauga, Ontario

Quote:

Originally Posted by LtownZ28

Patman,
How does the Castrol Syntec 5w-40 and 10w-40 compare to the GC or even the Mobile 1 5w-40 turbo diesel formula? Thanks.

I've never seen an oil analysis on Castrol 5w40 or 10w40 yet to compare, although I do know they are decent oils.

I still prefer GC above all else.

May 25, 2006 | 04:22 PM

#27

dhdenney

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From: Monticello, Kentucky

Quote:

Originally Posted by SSCamaro99_3

Thanks for the info.

No prob. The Rotella T (blue jug) is pretty popular with the older VW diesels. It's a group 3 oil though. The only group 4 synthetics available in N. America are Mobil 1 (which includes Delvac 1), Amsoil, and the German Castrol... maybe a few others.

Jun 30, 2006 | 06:03 PM

#28

Dom

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Quote:

Originally Posted by rgaynor85

go for the german castrol ow30 much better oil IMHO, test have shown its better and as far as m1 they are not nearly all the same, again ask patman m1 5w30 is very thin like almost runnin 5w20 when i tried it my motor got noisey and not as smooth swiitch to GC and its quieter and smoother running. my gf's supercharged monte SS was the same exaclt way and thats on a motor with only 13k mi and mine has 62k, i think if u gotto run m1 cause ur stuborn the 5w40 is the way to go if u cant find it maybe 10w40? or the 0w40 i supose

I know the M1 5w30 is too thin, but does the same hold true for the Extended Performance version?