I checked that pdf, this is based on 10w30, would the formula Shell be better in cold starting temps in 5w30 (that's what I want now since it's summer).
It's on sale up here in for $2.79L. I just finished my ARx and it's time to get it out (just over 3000Km's).
And, based on that test, Shell is better than Castrol? Man, I've got a case of 10w30 GTX in the garage, what do I do with it now?