Royal Purple rear-end gear lube users...

U

Uncle Meat

Banned

Jun 13, 2002

0

1

0

Prattville, Alabama

Sep 24, 2007

#1

• Sep 24, 2007

• #1

Better read this...

http://www.performanceoiltechnology.com/Gear Lube White Paper.pdf

RP finished 12th out of 14.

Amsoil rated #1, Mobil 1 rated #2.

U.M.

 

B

bakos24

I find there is nothing better than a tasty wiener

Nov 29, 1999

4,461

87

134

NE, OH

Sep 24, 2007

#2

• Sep 24, 2007

• #2

Amsoil FTW

 

N

Nightstick

New Member

Jul 1, 2007

68

0

0

Sep 24, 2007

#3

• Sep 24, 2007

• #3

Good find.

Have to take the time to really read it all but, working in the lubricants industry I can tell you thats about what I would expect for results of the study. Royal Purple is not your friend.

 

Mustang225

Founding Member

Jul 23, 2000

424

5

29

Sep 24, 2007

#4

• Sep 24, 2007

• #4

Is it necessary to change the rear gear oil on a stock stang?

If so, at how many miles?

 

merc123

Active Member

Jan 27, 2003

420

2

39

North GA

Sep 24, 2007

#5

• Sep 24, 2007

• #5

Good thing I'm am Amsoil dealer now Also, anyone realize that it was prepared by AMSOIL?

 

U

Uncle Meat

Banned

Jun 13, 2002

0

1

0

Prattville, Alabama

Sep 24, 2007

#6

• Sep 24, 2007

• #6

merc123 said:

Good thing I'm am Amsoil dealer now Also, anyone realize that it was prepared by AMSOIL?

Click to expand...

True, but they included copies of the signed affidavits from the independent test group. Regardless of that, I wasn't posting it to show how good Amsoil was as much as I was posting it to show how crappy RP is!

U.M.

 

hotmustang331

Active Member

Apr 29, 2004

2,967

3

48

Bastrop,TX

Sep 24, 2007

#7

• Sep 24, 2007

• #7

Hmm I have been using RP for the past 53,000 miles...and no problems . Not to mention ALOT of passes at the track. Oh well, ill be pulling the 3.73s out in the next week or 2 and throwing back in my stock 3.27s, so ill just refill with Amsoil
Im curious as to how my gears look. If they look fine then we can just ignor the test results. But I can tell you that I would NEVER run RP in my engine...dont like the idea of purple in my motor. Gears are fine, but im just very picky about my motor.
Also run RP in my tranny...and thats holding up fine as well LOL.

 

CobraRed_96_GT

Active Member

May 20, 2006

1,421

4

39

UCSD/La Jolla

Sep 24, 2007

#8

• Sep 24, 2007

• #8

Mustang225 said:

Is it necessary to change the rear gear oil on a stock stang?

If so, at how many miles?

Click to expand...

105-110K miles from stock.

I worked for Royal Petroleum for 3 years and i'm not surprised from these results at all.

 

Silvergto2

Member

Jun 8, 2005

179

1

16

UTAH

Sep 24, 2007

#9

• Sep 24, 2007

• #9

Interesting, I noticed the footer on the bottom of page one that said Amsoil Drivetrain Division; Amsoil INC. Kinda funny how Amsoil ended up #1. Though it looks pretty in depth and I'm sure Amsoil is really good; personally I like Mobil 1 better than anything; I wonder how bias a study can be that is testing competitors including itself on how well its product perform

 

N

Nightstick

New Member

Jul 1, 2007

68

0

0

Sep 24, 2007

#10

• Sep 24, 2007

• #10

Silvergto2 said:

Interesting, I noticed the footer on the bottom of page one that said Amsoil Drivetrain Division; Amsoil INC. Kinda funny how Amsoil ended up #1. Though it looks pretty in depth and I'm sure Amsoil is really good; personally I like Mobil 1 better than anything; I wonder how bias a study can be that is testing competitors including itself on how well its product perform

Click to expand...

I think there is always room to sway something in your favor when your the one doing the study/testing. If they came out with results that showed them lagging behind in some way, it wouldn't be a very good marketing tool. I have little doubt they have quality products but I think Mobil 1 products are probably your best bet for the money. A formulation chemist I used to work with has had both Royal Purple and Mobil 1 engine oils broken down in the lab. Mobil 1 is the real deal. RP just markets themselves as wonderful...thats about it. Not only that, the list of cars with Mobil 1 as factory fill keeps growing.

 

U

Uncle Meat

Banned

Jun 13, 2002

0

1

0

Prattville, Alabama

Sep 25, 2007

#11

• Sep 25, 2007

• #11

Silvergto2 said:

Interesting, I noticed the footer on the bottom of page one that said Amsoil Drivetrain Division; Amsoil INC.

Click to expand...

Nightstick said:

I think there is always room to sway something in your favor when your the one doing the study/testing.

Click to expand...

Uncle Meat said:

True, but they included copies of the signed affidavits from the independent test group. Regardless of that, I wasn't posting it to show how good Amsoil was as much as I was posting it to show how crappy RP is!

U.M.

Click to expand...