Originally Posted By: VeeDubb
I just got a response from them that the 5w30 has a HTHS of 3.0 @150C.
The 10w-30 is HTHS 3.1 @150C.
These HTHS's are very much the same with other xW30.
I have two Full Synthetic 10W30 jugs, I need Full Synthetic 10W40 to raise HTHS to 3.3-3.5 for my S2000.