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as motul and redline, i think i've read all 30 something pages of that thread about oils. rp aint bad of course and you're not going to see any detrimental effects running it. its pretty good for the price you can get it for.

haha, dude you're not giving me anything to discuss... that other thread has a heap of discussion in it by people more knowledgable than me. i'm not dissing rp - i put it in MY CAR to start with!!

buuut - Royal Purple uses a different chemistry than most oils. They are one of only a handful of marketers using Molybdenum Disulfide (Moly) in their oil. Moly is a solid material, which is specifically banned by Cummins®, due to excessive valve train wear.

Royal purple use moly.

http://www.enhancedsyntheticoil.com/Royal_...e_vs_AMSOIL.htm

rp is a GOOD oil, its a group IV oil, redline is a group V. i've come to my own conclusion that i would rather pay the extra for redline. i'm not really telling anyone else what they should run in their car. like i said previously, the differences most of us will notice are probably negligible when comparing quality oils such as these in daily driving situations.

after doing a bit more reading - i'll probably stick with rp for my second sub-5k oil change before going to redline (was going to try mobil 1 this time around but it appears that mobil1 is actually not considered a true group IV oil by many....

Edited by made_guy

damnit!!! i can't see some pictures on this thread when i'm at work!! that's the second time in 2 days this affliction has thwarted me!

for example i can't see my avatar or shanef's but i can see dano's!?

Edited by made_guy

the pictures are of an oil test scanned out of a magazine I posted the pages that had Motul Redline and RP thats what I was saying to discuss lol

basically they give motul a bad wrap, say that redline was somewhat disappointing and blow major smoke up royal purples arse...

oooooh fair enough - no wonder i was like "wtf man". sorry 'bout that.

hey its not the street commodore magazine (think that was it) article is it? the one they retracted cos they used a 'useless' testing method that was actually a grease test and the manufacturers threatened some legal action??

Edited by made_guy

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