Royal Purple gets busted.
Le Mans Master
Joined: Sep 2007
Posts: 7,604
Likes: 8
From: Belleville Il
Use what makes you happy,,don't knock others choices!! As they say "Your money,,Your car"!! I have a friend that bought a 97 GMC Sonma new,,,and has 587,xxx miles on the original unopened motor and drive train. It's never had synthetic in it!! Pay your money and enjoy!!
Race Director
Joined: Dec 2000
Posts: 19,304
Likes: 85
From: San Diego CA
But considering the fact that they've changed the formula of Mobil 1 (and all brands of motor oil in fact) many many times over the past 30 years, how do you know that you'll get the same results from the latest formulation that you got from the previous ones? You're assuming that because it was a great oil in the past that it's still a great oil today. It's still a good oil, but from oil analysis results I've seen lately, I wouldn't exactly call it a great oil, there are many others out there that are better.
This is why I am not going to try to convince anyone to use the latest and greatest oil according to Bob. Mobile 1 may have changed their formula, but it still meets the SAE specs and Mobils stringent test requirements. That's good enough for me.
Drifting
Joined: Oct 2007
Posts: 1,671
Likes: 4
From: MI
That was not the point of what I was trying to say. The article did these test on the RP oil to try and scale the performance improvement. Then they try and call RP out for all of testimonials and claims. All of those claims stated you had to make the complete switch for the performance improvements, which they obviously only changed the engine oil.
Thread Starter
Drifting
Joined: Nov 2001
Posts: 1,658
Likes: 25
From: Rochester Minnesota
That was not the point of what I was trying to say. The article did these test on the RP oil to try and scale the performance improvement. Then they try and call RP out for all of testimonials and claims. All of those claims stated you had to make the complete switch for the performance improvements, which they obviously only changed the engine oil.
Thread Starter
Drifting
Joined: Nov 2001
Posts: 1,658
Likes: 25
From: Rochester Minnesota
I just don't understand people who go off and use some other oil that only the manufacturer/marketer claims to be good to use in a Vette.
Melting Slicks
Joined: Oct 2007
Posts: 2,798
Likes: 8
From: It's true money can't buy happiness, but it is more comfortable crying in a Corvette than on a bicyc
St. Jude Donor '13
Guess I shouldn't switch to the new Castrol Edge since they claim an 8% wear reduction over Mobil 1? I already use Syntech but the Jimmys Dipstick advertising has made me think I should try the new Edge. Now I have to doubt all advertising?
RP in my tranny and my diff. Both showed positive results. Smoother shifting and quieter gear noise. Many pro race teams are sold on RP motor oils but I've read complaints about bearing failures with RP oil so I couldn't do it.
BTW in Alex's RP thread I tossed out a tidbit from my local Walmart. On the RP oil shelf they have a sign stating that RP is not for use in 2004 and newer vehicles. I'm not sure why and still haven't found anything on the net to back that up.
RP in my tranny and my diff. Both showed positive results. Smoother shifting and quieter gear noise. Many pro race teams are sold on RP motor oils but I've read complaints about bearing failures with RP oil so I couldn't do it.
BTW in Alex's RP thread I tossed out a tidbit from my local Walmart. On the RP oil shelf they have a sign stating that RP is not for use in 2004 and newer vehicles. I'm not sure why and still haven't found anything on the net to back that up.
Last edited by Camjamsdad; Apr 10, 2009 at 02:13 AM.
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Tech Contributor
Joined: May 2008
Posts: 3,100
Likes: 17
From: Somers, CT and Clermont, FL
St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16
Am I taking what I need to from the article? I glanced over it pretty quickly. From what I gather RP is just having to change their claims because the information they received from independent testing is not enough to substantiate their advertisements but, on the same hand is STILL a synthetic oil that meets the requirements to be used in an LS1. Did I miss something else?
-Alex
-Alex
I don't feel that it's cause enough, for RP users, to run right out and drain all RP lubricants from their cars.
Tech Contributor
Joined: May 2008
Posts: 3,100
Likes: 17
From: Somers, CT and Clermont, FL
St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16
Melting Slicks
Joined: Nov 2007
Posts: 2,336
Likes: 4
From: NW Arkansas
St. Jude Donor '08-'09
Burning Brakes
Joined: Apr 2007
Posts: 1,030
Likes: 1
From: Douglasville Ga
I think a lot of people are missing the major point. People are not going to go out and drain ther tanks and switch from RP becuase it is SOOOO much worse then M-1. They are switching becuase RP made false claims to drum up business. Flat out...THEY LIED. The reason I never switched was becuase there wasn't substantial data showing the increase.
Melting Slicks
Joined: Nov 2007
Posts: 2,336
Likes: 4
From: NW Arkansas
St. Jude Donor '08-'09
Drifting
Joined: Feb 2006
Posts: 1,420
Likes: 0
From: Boston MA
Burning Brakes
Joined: Jan 2007
Posts: 1,152
Likes: 3
From: Hawaii
There's that MISCONCEPTION again. MOBILE1 is NOT RECOMMENDED!!!
The oil cap says "Factory Filled w/Mobile 1". Show me in the owner's manual where it says "Mobile1 is RECOMMENDED" Show me!
The oil cap says "Factory Filled w/Mobile 1". Show me in the owner's manual where it says "Mobile1 is RECOMMENDED" Show me!
Last edited by HawnHog; Apr 10, 2009 at 04:58 PM.
