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 5w30 Magnatec listed, while we all know 5w30 GTX synblend existed.
BTW, is there any synblend 0w-20?