Royal Purple 5w20... HTHS?

[sdude2k2000]

Does anybody know what the Royal Purple 5w20's HTHS is? I'm kind of curious how it stacks up to Redline and Mobil 1 (only other two true synthetic 20-weights that I'm aware of).

I have it in my 2.3L Mazda 3 right now and the car seems to be enjoying it.

 

[Phat]

I worked in oil change pits for a few years and the only 2 Chevy V8 trucks i ever heard knock in the bottom end just had Royal Purple put in them, they were both newer trucks with the LS based motors.

 

[Big John]

I've used RP 5w & 10w30 in my 03 V-8 Chevy and never had any noise using it.. Royal Purple gets a bad rap here by alot of people,some may be warranted by I have used it and still do in some of the fleet I maintain,I like it...just my 2 cents.

 

[sdude2k2000]

ok... so does anyone know the HTHS for the 5w20? (Original question)

 

[goodvibes]

It should be between 2.6 and 2.7.