GC and Syntec the same thing?

In looking at a couple of posts, it seems to this old cowboy that GC 0w-30 (04) appears to be the same thing as Syntec 0w-30. I go the info from the VOA library for Syntec and the VOA comparing 04 and 05 GC. I realize that the common wisdom says Syntec is group III and GC is PAO, but the add packs seem to be the same. Did I misread it? [I dont know] Thanx Bob W.
 
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You have misread something. GC is the German made Syntec (0w-30). The U.S. made Syntec is different. For example, the U.S. Syntec has moly while GC does not. What you have noticed is a similarity in the add packs between the 04 GC and the 05 GC. However, the 05 GC has more magnesiun and less calcium than the 04 GC.
 
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...and don't forget the neat ester oils that seem to be a bit different than locally available oils, and ...it's green! PS. I forgot to mention the better wear numbers. BtB
 

TheFuror

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quote:
Originally posted by SSDude: You have misread something. GC is the German made Syntec (0w-30). The U.S. made Syntec is different. For example, the U.S. Syntec has moly while GC does not. What you have noticed is a similarity in the add packs between the 04 GC and the 05 GC. However, the 05 GC has more magnesiun and less calcium than the 04 GC.
Well, I think I know what happened: the VOA library has listed it as "Castrol Syntec 0w-30" with no mention that it was GC. I missed the notation that it was "full synthetic". So, I think I was looking at two different samples of GC 04, which show virtually identical add packs, and not US Syntec and GC. Thanx for clearing it up. [Duh!] Bob W.
 
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