Originally Posted By: Darwin1138
Magnatec is the same as GTX synblend, is just that when Magnatec was originally launched they couldn't use it in the US because of fear of a lawsuit of false advertising, and they launched it as GTX Synblend now I think that the lawyers gave the green light to use the magnatec brand.
That could be the case, however, I don't believe there was a 0w-20 GTX synblend, as there is with Magnatec. Also, on the Castrol web site there is no 5w-30 Magnatec listed, while we all know 5w-30 GTX synblend existed.
BTW, is there any synblend 0w-20?