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rear end gear oil

i was wanting to change fluid and was told by a ford mechanic.that i should use ford productds including their modifier..i was thinking of amsoil products. any input?
 

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I would go with the Amsoil gear lube and friction modifier its great stuff. I use it in my 00Excursion, 87GT, 01Bullitt, and 04Cobra.
 

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crow magnum said:
i was wanting to change fluid and was told by a ford mechanic.that i should use ford productds including their modifier..i was thinking of amsoil products. any input?
I went with the All Ford Gear Oil & Modifier.


tigerhonaker
 

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Crow Magnum ( great name by the way) - Using Ford fluids in the rear does one thing - it eliminates ANY problem with warranty work on the rear end gears. Using anything else may, depending on the dealer, give Ford a reason not to honor it.

Your choice.
 

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Dyno Don said:
Crow Magnum ( great name by the way) - Using Ford fluids in the rear does one thing - it eliminates ANY problem with warranty work on the rear end gears. Using anything else may, depending on the dealer, give Ford a reason not to honor it.

Your choice.

Wrong.

There is a Federal law that states a Dealer and manufacturer must prove that any change was the sole cause of a warrantee problem to deny coverage.

Not much of an an issue as it once was.

Most lube producers have their own warrantee anyway.

I know Amsoil does.

Just picked up 75W-145 and FrMod from them for a Bullitt. Should be no problem.
 

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Not sure! But Lucy is in the Ford dealer getting 4oz of modifier 'pushed' in her backside!

Hope it's not sore, cause I'm gonna want to ride her hard when I pick her up!

:D
 

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Guess no one liked that comment... The friction modifier made the groaning go away. YAY.

This should be in another forum anyway... maintenance question...

ADMIN??? Wanna move it?
 

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Sorry to hi-jack your thread! But how often should I change the rear end oil in my Bullitt?
 

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The owner's manual doesn't even specify a change for normal driving. And I don't think I've ever changed mine in my regular daily drivers. But the book also says to change at 60,000 miles for severe use (dirt, dust, stop & go driving, towing a trailer, etc.). These fluids are cheap insurance and I change both tranny and rear end fluids in my Mazda MX-5 every 25 - 30,000 miles. I drive it fast and hard and when it's changed, I notice a slight difference in how it shifts and drives. I've only got 11,000 on the B but plan on doing it at 20 or 25. I'll know more when I see the color of the fluids. Others here with more mileage and experience may have a better feel for when it should be done. To some I may be waiting too long

P.S. - don't forget to add 4 ounces of Friction Modifier! Keeps the dying whales away!
 

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Mobil 1

The latest Mobil 1 75w-140 LS has has a friction modifier already added.
I use it in my 04 Ranger FX4 Level 2 (daily driver)which requires synthetic 75w-140 in the stock thorsen (sp?) rear end. No chatter or problems.
 

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I just had my car serviced (starter died, stranded me 127 miles from home, but hey, that's ok...grrr!!) and they did the multipoint inspection thing. I was looking at the paperwork and it was recommended I change the fuel filter, well ok, but also that the rear differential fluid was found to be dirty/contaminated and needs to be changed. Huh? I found it in the paperwork - they never said anything or tried to sell me the services but somehow I find this hard to believe, at 33K miles???
 

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MustangLynda said:
I just had my car serviced (starter died, stranded me 127 miles from home, but hey, that's ok...grrr!!) and they did the multipoint inspection thing. I was looking at the paperwork and it was recommended I change the fuel filter, well ok, but also that the rear differential fluid was found to be dirty/contaminated and needs to be changed. Huh? I found it in the paperwork - they never said anything or tried to sell me the services but somehow I find this hard to believe, at 33K miles???
Lynda,

Change BOTH of them.

I have already done that at 23,000 Miles.

The Fuel Filter at 16,000 Miles.

Just changed the Rear End Fluid & Modifier last week at 23,000 Miles. (Thats Twice for that)

Terry
 

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tigerhonaker said:
Lynda,

Change BOTH of them.

I have already done that at 23,000 Miles.

The Fuel Filter at 16,000 Miles.

Just changed the Rear End Fluid & Modifier last week at 23,000 Miles. (Thats Twice for that)

Terry
Ok, I'll do it then. Next oil change. Thanks Terry!
 

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MustangLynda said:
Ok, I'll do it then. Next oil change. Thanks Terry!
Lynda,

Go to your Ford Dealer of your choice and use All Ford Products for the Change.

I went back to Ford Products this last time as I had some (Noise) in mine when turning Sharp into my Garage.

No-Noise now !!!

Terry
 
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