what oil?
probably because the really smart people who designed the car and know the car inside out reccommend mobil 1...but I'm sure you know alot more than them. Do you put regular gas in your car if the cap says premium...I hope not.
Last edited by blackngold20; Jul 14, 2007 at 02:58 PM. Reason: Automerged Doublepost
It's all a gimmick. RP is better then M1 in every aspect.
What's so great about royal purple? Oh because Horsepower TV got 13 HP on a built LS1 by putting it in? I guess you're one of those fools who thinks they're pouring in horsepower everytime they change the oil.
rp vs m1
I used to use Mobil 1 religiously in all my vehicles. When it was time for a change in the Cobalt, I deceiced to try the Royal Purple. I swear that there is a difference in the vehicle from the Mobil. It seems to rev easier and smoother. I will continue to go with Royal Purple in the Cobalt. Plus it seems to stay cleaner. Just my $.02 .
I used to use Mobil 1 religiously in all my vehicles. When it was time for a change in the Cobalt, I deceiced to try the Royal Purple. I swear that there is a difference in the vehicle from the Mobil. It seems to rev easier and smoother. I will continue to go with Royal Purple in the Cobalt. Plus it seems to stay cleaner. Just my $.02 .
Why do over half of all NASCAR and Formula 1 teams use Mobil1 then? Honestly they are basically the same. Royal Purple is more expensive because they cannot mass produce the way Mobil 1 can and they have marketed there product better than Mobil 1. They really are basically the same though.
Edit: I actually don't know about the RP or Amsoil being made from refined dino oil, it may be different. But, alot of "synthetics" are refined dino oil. RP and Amsoil I believe say that they are PAO oils, and completely synthetic, but I have been told otherwise by some guys who have been in the field for a long time. I can never find the proof I need.
Check this thread out. They straighten out what all the groups are and how they are manufactured. Pay attention to the second to last post; it talks about the true sythetic ingrediants that are used in groups 4 and 5 and how they are made:
http://forums.noria.com/eve/forums/a...5/m/3781046331
http://forums.noria.com/eve/forums/a...5/m/3781046331
here ya guys go... hard numbers and proof... mobil 1 is good, amsoil is the best over everyone else
http://www.smartsynthetics.com/artic...il_testing.htm
enjoy
http://www.smartsynthetics.com/artic...il_testing.htm
enjoy
do not buy Royal Purple XPR oil unless you are planning on changing your oil every 1000 kms.. it is a racing oil, and is not intended for daily driving.. If you do want to change over to royal purple i would reccomend the regular 5w-30 or 10w-30
http://www.royalpurple.com/prodsa/rpro.html
I did the royal purple tranny flush the other day, and the **** feels awsome. way smoother. i would recomend more people on here try it. Im soon going to be doing the rp oil change and see how that is....probably same results, much smoother feeling like everyone says.
From royal purple's site.
Can I use racing oils in my street car?
Yes. Royal Purple’s racing oils are formulated with detergents / dispersants necessary for daily use. The heavier grades (i.e. XPR 5W30, XPR 10W40 and XPR 20W50) may be used in street driven applications. However, Royal Purple’s racing oils do not conform to API and / or ILSAC licensing requirements and should not be used when vehicle warranty is an issue.
LOL
From royal purple's site.
Can I use racing oils in my street car?
Yes. Royal Purple’s racing oils are formulated with detergents / dispersants necessary for daily use. The heavier grades (i.e. XPR 5W30, XPR 10W40 and XPR 20W50) may be used in street driven applications. However, Royal Purple’s racing oils do not conform to API and / or ILSAC licensing requirements and should not be used when vehicle warranty is an issue.
From royal purple's site.
Can I use racing oils in my street car?
Yes. Royal Purple’s racing oils are formulated with detergents / dispersants necessary for daily use. The heavier grades (i.e. XPR 5W30, XPR 10W40 and XPR 20W50) may be used in street driven applications. However, Royal Purple’s racing oils do not conform to API and / or ILSAC licensing requirements and should not be used when vehicle warranty is an issue.


