Originally Posted By: Jim Allen
What amazes me most is that there's an Australian using it! Light oils are hard to find there and if you spend some times on the car forums from there you'd see a very strong cultural bias towards heavy oils. Not criticism as much as observation, so if you are one of "those" heavy oil Australians, please don't take offense. Toyota62... you are one of the few and the proud there. I did a search a while back through your large auto parts chains online and found a 20 grade oil kinda hard to find.
What Fuchs did that was smart from a marketing point of view was run this stuff in the Porsche Cub racing series down under and advertized the heck out of it. I don't think it changed a lot of minds that you don't have to go thick to protect but it at least allowed this particular all to be accepted being ester and all that.
BTW, with a HTHS vis of 3.1 cP (as Rouge21 has mentioned) this really isn't a 20wt oil anyway. You'll have the same oil pressure at normal operating temp's as Mobil 1 5W-30 which has the same HTHS vis; perhaps even thicker in service since it has no VII's and is impervious to shear.