Patman
Staff member
You are correct, I'm looking at the Redline 5w20 spec sheet right now and it says 3.3.quote:
Originally posted by TooSlick:
Terry,
I was going to mention that for a street application, the Redline 5w-20 @ $7.00/qt is a better value than this Synergyn @ $10.00/qt. The Redline stuff is also going to have a greater, HT/HS viscosity - in fact I think it's 3.3 Centipoise, which is exceptional.
But I also remember a conversation I had with you on here about how Redline uses a different rating system for it's HTHS numbers, which show them a bit higher than others. They use the ASTM D4741 method to calculate their HTHS. I think you mentioned this method shows numbers a couple of points higher. (which means their 3.3 might actually be 3.1 when compared to the other method most oil companies test with)
Don't get me wrong though, I do believe Redline 5w20 is probably the best 5w20 you can buy at a reasonable price.