Do i need to add friction modifier? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

gotpball44 · 03-01-2010, 11:58 PM

Hey guys,
Just have a quick question that i need answered by tomorrow, cause going to change out the fluid. I just bought the Amsoil diff fluid (75w90) and was wondering if i still have to add the friction modifier? It doesn't say on the bottle. Its not a big deal to buy some from chevy, so i was just wondering.

Also, if i did put the 2.6oz of friction modifier with the amsoil, will it hurt anything?

Moriartii · 03-02-2010, 09:29 AM

If I remember correctly in reading you dont need to add the FM to amsoil or RP.
Cheers
K

gotpball44 · 03-02-2010, 02:35 PM

OK cool, anyone else know?

Moriartii · 03-02-2010, 02:42 PM

After doing further research for my own fluid change, I can tell you without a doubt if you are using RP, Amsoil, or Redline you do NOT need the modifier.
Cheers
K

markmass · 03-02-2010, 03:26 PM

Taken from the Amsoil website: And as all Camaros have a LSD.....

AMSOIL SEVERE GEAR® (75W-90) provides superior performance and replaces competitors’ 75W-90 and 80W-90 gear oils. It delivers the best fuel efficiency and cold temperature performance of the SEVERE GEAR oils.
AMSOIL SEVERE GEAR® is compatible with conventional and synthetic gear oils. Mixing AMSOIL gear oils with other oils, however, will shorten the oil life expectancy and reduce the performance benefits. AMSOIL does not support extended drain intervals where oils have been mixed. Aftermarket oil additives, other than those specified by AMSOIL, are not recommended for use with AMSOIL gear oils.
AMSOIL SEVERE GEAR® is compatible with most limited slip differentials. If limited slip differential chatter occurs, add AMSOIL Slip-Lock™ friction modifier additive.

So I guess it doesn't need it unless you get chatter, on the flip side --- it doesn't appear to have a warning not to......Another thread here added the modifier.

Im changing mine with Amsoil and will add the modifier

gotpball44 · 03-02-2010, 11:18 PM

Hey guys,
Thanks for the responses. I just bought the Friction modifier anyways. Just going to put 2 oz of the stuff. Called amsoil and they said if i put the FM in with their fluid that it wont hurt anything.

03-01-2010, 11:58 PM	#1
gotpball44 Boost Is Your Friend Drives: 2016 Hyper Blue 1SS Camaro Join Date: Oct 2008 Location: La Mirada CA Posts: 1,255 View My Garage	Do i need to add friction modifier? Hey guys, Just have a quick question that i need answered by tomorrow, cause going to change out the fluid. I just bought the Amsoil diff fluid (75w90) and was wondering if i still have to add the friction modifier? It doesn't say on the bottle. Its not a big deal to buy some from chevy, so i was just wondering. Also, if i did put the 2.6oz of friction modifier with the amsoil, will it hurt anything? Last edited by gotpball44; 03-02-2010 at 02:14 AM.

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03-02-2010, 09:29 AM	#2
Moriartii Drives: 11 IOM 2SS/RS M6 w/Hurst Join Date: Nov 2009 Location: Austin Texas Posts: 1,269	If I remember correctly in reading you dont need to add the FM to amsoil or RP. Cheers K

03-02-2010, 02:35 PM	#3
gotpball44 Boost Is Your Friend Drives: 2016 Hyper Blue 1SS Camaro Join Date: Oct 2008 Location: La Mirada CA Posts: 1,255 View My Garage	OK cool, anyone else know?

03-02-2010, 02:42 PM	#4
Moriartii Drives: 11 IOM 2SS/RS M6 w/Hurst Join Date: Nov 2009 Location: Austin Texas Posts: 1,269	After doing further research for my own fluid change, I can tell you without a doubt if you are using RP, Amsoil, or Redline you do NOT need the modifier. Cheers K

03-02-2010, 03:26 PM	#5
markmass TRI-COUNTY CAMAROS Drives: 2SS/RS Oct 2009 Join Date: Oct 2009 Location: Coral Springs Florida Posts: 448 View My Garage	Taken from the Amsoil website: And as all Camaros have a LSD..... AMSOIL SEVERE GEAR® (75W-90) provides superior performance and replaces competitors’ 75W-90 and 80W-90 gear oils. It delivers the best fuel efficiency and cold temperature performance of the SEVERE GEAR oils. AMSOIL SEVERE GEAR® is compatible with conventional and synthetic gear oils. Mixing AMSOIL gear oils with other oils, however, will shorten the oil life expectancy and reduce the performance benefits. AMSOIL does not support extended drain intervals where oils have been mixed. Aftermarket oil additives, other than those specified by AMSOIL, are not recommended for use with AMSOIL gear oils. AMSOIL SEVERE GEAR® is compatible with most limited slip differentials. If limited slip differential chatter occurs, add AMSOIL Slip-Lock™ friction modifier additive. So I guess it doesn't need it unless you get chatter, on the flip side --- it doesn't appear to have a warning not to......Another thread here added the modifier. Im changing mine with Amsoil and will add the modifier

03-02-2010, 11:18 PM	#6
gotpball44 Boost Is Your Friend Drives: 2016 Hyper Blue 1SS Camaro Join Date: Oct 2008 Location: La Mirada CA Posts: 1,255 View My Garage	Hey guys, Thanks for the responses. I just bought the Friction modifier anyways. Just going to put 2 oz of the stuff. Called amsoil and they said if i put the FM in with their fluid that it wont hurt anything.