Friction modifier - Jeep Commander Forums: Jeep Commander Forum
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post #1 of 5 (permalink) Old 05-05-2010, 08:37 AM Thread Starter
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Exclamation Friction modifier

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Just got back from the dealer, and have resolved at least one question. Both the service writer and one of the mechanics told me that only the rear diff. requires 4oz of friction modifier. They said any brand would be OK. There are some sort of clutch plates in the rear end (viscous coupler?) that require the additive.
They were wrong, see my next post below!!


Also the transfer case (J 140) requires ATF+4, any other is something else(didn't ask)

BTW, this is for my 2006 3.7, hope this helps.

EDIT-Picked a bottle up today, about $8.



2006 Jeep green 65th anniversary edition (stock)

3.7 Liter QT1

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post #2 of 5 (permalink) Old 05-05-2010, 08:43 AM
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Quote:
Originally Posted by clrizz View Post
Also the transfer case (J 140) requires ATF+4, any other is something else(didn't ask)

BTW, this is for my 2006 3.7, hope this helps.
That is correct. QT 1 uses ATF and QT II and QD II use the transfer case oil from the dealer.

06 Sport-4.7L with QT2

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post #3 of 5 (permalink) Old 06-09-2010, 01:59 PM Thread Starter
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Got the word from the horses mouth today. I sent an email to chrysler.com yesterday regarding the friction modifier additive, and here is the response...

Dear Chris:

Thank you for contacting the Chrysler Customer Assistance Center
regarding the rear differential for your 2006 Jeep Commander.

According to our records, your vehicle was equipped from the factory
with a conventional rear differential. This type of differential does
not require the use of a friction modifier.

Chrysler recommends using Mopar synthetic gear lubricant SAE 75W-140.

Thanks again for your email.

Sincerely,

Joe

Customer Service Representative
Chrysler Customer Assistance Center


So the dealer I spoke to, once again, is WRONG!!

I changed the diff fluids yesterday, and it looked like an open diff to me. I am accepting this as the final answer for my JC.

Case closed.

2006 Jeep green 65th anniversary edition (stock)

3.7 Liter QT1
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post #4 of 5 (permalink) Old 06-09-2010, 04:16 PM
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2007 4.7 Liter XK | Front OME MD Springs w/Superlift Preload Spacer | Rear 4" Superlift Springs | Bilstein 5125 Rear Shocks | JBA UCA's | Rusty's Rear Adjustable Track Bar | Black Rock 997 Wheels | Fred Goeske 1/4 Inch Wheel Spacers | 305/70R17 Goodyear Wrangler MT/R w/Kevlar | Airflow Snorkel | Flowmaster 40 Series Muffler | Superchips Flashpaq | Mopar Skids | 4xGuard Belly Guard | American Rebel Rear Diff Cover | Rear Powertrax No-Slip | Front E-Locker | Rear Heat/AC Delete
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post #5 of 5 (permalink) Old 06-14-2010, 05:14 PM
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i posted some in the for sale section under parting out

06 5.7 Limited,QDII,blk/sdl lthr,nav/ves,chrome tow hooks,DUB grill,weathertech cargo mat,rubber antenna,PIAA intense white/low & super plasma/high, Trueflow panel fltr,Hankook Dynapros,Thule/Mopar 687 cargo pod
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