Joecooool

Anyone else heard this?


From Roy Howell, Chief Chemist, Lubrisol


Differences between RedLine and Mobil 1. Redline starts out with a Jet Turbine Oil Base, which has a higher level of thermal stability, and they have to add less friction modifiers. Red Line has 1/2 Cf of Mobil 1

Viscosity vs. Sheer strength are similar, but Red Line handles high loads better.

Can gain 1 - 2% more power by going to a lower viscosity oil.

kewlbrz

Redline is one of the few that use pure syntetic base stocks.

Dave68

I heard that there can be a slight boost in HP if using Amsoil, but never heard this about Redline.

MitchAlsup

I do not believe that RL has 1/2 the coeficient of friction compared to just about any other fully synthetic oils. If you believe this you simply don't underatand what lubricity is, or what viscosity is.

L.A.P.D.

Joecooool,

Check this out on Red-Line's website:
http://www.redlineoil.com/dyno.htm

1998 C5 switched from Mobil 1 5w30 to Red-Line 5w30 and gained some power on the dyno.

Shawn

chrislee2

FWIW I have heard rumors(on the bimmerforum) that redline will seperate if left on the shelf for too long. I have not heard anything like that about amsoil.

Chris

Mike Mercury

well sure Red Line is going to say something like that about their product. That's the way one company competes with another. The question is:

"is there any merit to their claim"?

Someone email this Red Line claim to the Mobile One people and lets see what their response is...

RHILL

YA that's the ticket

jimman

If you look at the dyno sheets on Red Lines page, the temp differences and correction factors are too close to make a determination from that curve. In other words well within tollerances so no conclusion can be drawen. Personally why run the risk.....

ersatz928

None of the Redline products are API tested and certified. Makes me question the quality of their products and claims.

Vetts Forever

I have to agree with this statement. From

http://www.vtr.org/maintain/oil-overview.html

"Viscosity Index is an empirical number indicating the rate of change in viscosity of an oil within a given temperature range. Higher numbers indicate a low change, lower numbers indicate a relatively large change. The higher the number the better. This is one major property of an oil that keeps your bearings happy. These numbers can only be compared within a viscosity range. It is not an indication of how well the oil resists thermal breakdown."

For the two 5W30 products in question:

Mobil 1 viscosity index (VI)= 165
Red Line VI = 151

Redline has a lower VI so it thins out more and offers less resisitant at higher temp. IMHO any gain in HP is at a cost of less oil viscosity (read less oil film protection of the engine) at peak operating conditions. The level of oil viscosity is one of the factors in the GM 4781M rating. The question for the individual driver becomes, "when weighing the factors is using Redline worth less oil viscosity protection?"

:cheers:


[Modified by Vetts Forever, 9:17 PM 8/5/2002]

99HT

For what it is worth, using super slippery synthetic oil can damage roller lifters according to accounts by top marine engine mechanics. They recommend against using some synthetic oils on GM 350's, 454's and 502's with roller lifters. It seem the roller does not roll, but slides across the cam lobe. This sliding puts a flat spot on the roller ruining it. The same problem has ocurred with roller tip rockers too.

I don't know if the LS1 has ever shown these problems with Mobile 1.

Rob 99

Not to rain on your post, but how many of us will even no the difference in how are engines are running with either RL or M-1,both are great lubricants for what the majority of use are vehicles for, i mean were not running 24 hrs at Le Mans.
I have used M-1 in a 2 diff vehicles with over 100g miles without a failure of an internal part so i think we may be splitting hairs. Peace, Rob. :chevy

MDL-01C5

Nice to see you in the real world, 99;) :)

vettenuts

[QUOTE]

For the two 5W30 products in question:

Mobil 1 viscosity index (VI)= 165
Red Line VI = 151

Redline has a lower VI so it thins out more and offers less resisitant at higher temp. IMHO any gain in HP is at a cost of less oil viscosity (read less oil film protection of the engine) at peak operating conditions. The level of oil viscosity is one of the factors in the GM 4781M rating. The question for the individual driver becomes, "when weighing the factors is using Redline worth less oil viscosity protection?"

[QUOTE]

I have to disagree here. The VI is a mathematical computation (ASTM D-2270) based on the viscosity tests at 100 and 40 degrees C (ASTM D-445). For the oils in question and Amsoil (I am not a Redline proponent either):

Vis @100 Vis @40 VI
Mobil-1 9.7 53.7 169
RL 10.6 65.0 153
Amsoil 11.7 63.4 182

The above statement on "thinning out" is found to be not true. The lowest measured viscosity at 100 degrees C (212 degrees F) is actually Mobil-1. However, Mobil-1 also has much lower viscosity at 40 degrees C whne compared to RL, such that it's VI is higher then RL.

TLewis4095

Although we did not dyno before & after, we do race weekly and when we switched to redline we saw no noticable difference in ET. I do believe it is a quality oil, but I am back to Mobile one. :cheers:

Quick Brick

I asked a former AJ Foyt IRL lead mechanic about oils. He works for a private Formula Atlantic team out here at Motorsport Ranch now. He said they ran M1 everything. Everyone did, if they were sponsored by Pennzoil they would empty and refill the bottles with M1. They ran red label 15-50 for their application. I have opened a lot of M1 motors to find cross hatches in the cylinders after a lot of hard miles. :)


[Modified by Quick Brick, 5:25 PM 8/6/2002]

jimman

I have opened a lot of M1 motors to find cross hatches in the cylinders after a lot of hard miles.

:confused: :confused:

Quick Brick

That means there was very little cylinder wall wear. The factory does a last fine hone on the cylinder walls that leaves little cross hatch marks. The friction from compression rings wears these away and eventually you loose compression, burn oil etc. M1 prevents this wear in the motors I have opened. Hope that helps :seeya

jimman

:yesnod: :yesnod: :yesnod: