Viscosity - GC & Amsoil ASL 5w-30

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34,146
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Southern NJ
About 1 cSt difference. Not even... 11.8 vs 12.6. Very little. Why? Are you one of these guy's that needs an oil that is EXACTLY 11.83423233 cSt to improve your wear by 2ppm? [Big Grin] Just kidding.
 
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5,358
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Gone
quote:
Originally posted by buster: About 1 cSt difference. Not even... 11.8 vs 12.6. Very little. Why? Are you one of these guy's that needs an oil that is EXACTLY 11.83423233 cSt to improve your wear by 2ppm? [Big Grin] Just kidding.
Now, now Buster... [No no] (and it must be 12.5956775 cSt--I was pretty sure you knew that) [Wink]
 
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5,785
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Dixie
You are all comparing the wrong viscosity [Smile] HT/HS of GC is 3.6 Cp @ 150C HT/HS of ASL is 3.5 Cp @ 150C So these are basically the same, as are the VI's: GC is 179 ASL is 178 As a practical matter, these oils will flow about the same, unless the temps are well below 0F.... TS
 
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5,785
Location
Dixie
Probably a version of Castrol SLX, Longlife II, 0w-30, unless it's still A3/B4 rated. A factory fill on many Vw/Audi engines - both gas and diesel. It's very easy to check - just do a VOA and look at the vis @ 100C. If it's < 11.0 Cst, it's an ACEA A5/B5 formulation like Mobil 1.... TS
 
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1,488
Location
Los Angeles
quote:
Originally posted by TooSlick: Probably a version of Castrol SLX, Longlife II, 0w-30, unless it's still A3/B4 rated. A factory fill on many Vw/Audi engines - both gas and diesel. It's very easy to check - just do a VOA and look at the vis @ 100C. If it's < 11.0 Cst, it's an ACEA A5/B5 formulation like Mobil 1.... TS
[SPAZ!]
 

LSVTEC 91 Civic

Thread starter
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104
Location
Camp Lejeune NC
quote:
Originally posted by buster: About 1 cSt difference. Not even... 11.8 vs 12.6. Very little. Why? Are you one of these guy's that needs an oil that is EXACTLY 11.83423233 cSt to improve your wear by 2ppm? [Big Grin] Just kidding.
Yes, I am. [Smile] The higher the cSt the lower the wear?
 
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