Which oil for diffs?
Cargo Master
Joined: Oct 2008
Posts: 3,330
Likes: 13
From: Eaton, CO
It took me 5 minutes to use a wire wheel on a bench grinder to completely remove all rust. Another 5 minutes using a 90 degree air grinder w/ a pad to polish the metal. Then I used rubbing alcohol and a paper towel to clean and I painted it with Rustoleum high temp grill paint. It cost me less than $7.
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Fleet Mechanic
Joined: Jun 2009
Posts: 1,346
Likes: 4
From: Connecticut
It took me 5 minutes to use a wire wheel on a bench grinder to completely remove all rust. Another 5 minutes using a 90 degree air grinder w/ a pad to polish the metal. Then I used rubbing alcohol and a paper towel to clean and I painted it with Rustoleum high temp grill paint. It cost me less than $7.
Cargo Master
Joined: Apr 2009
Posts: 2,135
Likes: 0
From: Man Cave
Cargo Master
Joined: Apr 2009
Posts: 2,135
Likes: 0
From: Man Cave
This one ? Its 80W does it matter. Im currently running Nulon in my engine and tranny and they seem to be doing well..
100% Synthetic 80W-140 Heavy Duty Limited Slip Differential Oil - Nulon Products Australia
100% Synthetic 80W-140 Heavy Duty Limited Slip Differential Oil - Nulon Products Australia
Post Fiend
Joined: Sep 2006
Posts: 7,426
Likes: 6
From: Sioux Falls, SD
I was not happy with my Royal Purple 75W-140 OUA results from the rear diff on my 2003 F-250. Ran it for 33K (about 8K pulling 31' 5th wheel) and the viscosity dropped down to a 90 weight and the oxidation was at 100. Have Schaeffer's in there now - I need another 2,000 miles on it do do a side by side comparison of 33K.
Logistics Pro
Joined: Jul 2009
Posts: 3,635
Likes: 3
From: Lansdale, PA
I was not happy with my Royal Purple 75W-140 OUA results from the rear diff on my 2003 F-250. Ran it for 33K (about 8K pulling 31' 5th wheel) and the viscosity dropped down to a 90 weight and the oxidation was at 100. Have Schaeffer's in there now - I need another 2,000 miles on it do do a side by side comparison of 33K.
I just picked up royal purple for my truck, and I really wanted to use it.
Maybe ill put it in the front diff where its not used as much.
Now I need another 50 dollars worth of gear oil for the back. All that is available in my area is valvoline synthetic, bummer.
How much does 4quarts of schaffer oil cost shipped to 04093?
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Post Fiend
Joined: Sep 2006
Posts: 7,426
Likes: 6
From: Sioux Falls, SD
DARN IT DARN IT DARN IT
I just picked up royal purple for my truck, and I really wanted to use it.
Maybe ill put it in the front diff where its not used as much.
Now I need another 50 dollars worth of gear oil for the back. All that is available in my area is valvoline synthetic, bummer.
How much does 4quarts of schaffer oil cost shipped to 04093?
I just picked up royal purple for my truck, and I really wanted to use it.
Maybe ill put it in the front diff where its not used as much.
Now I need another 50 dollars worth of gear oil for the back. All that is available in my area is valvoline synthetic, bummer.
How much does 4quarts of schaffer oil cost shipped to 04093?
Unfortunately Schaeffer's 75W-140 (#167) smallest container is 5 gallons. So, that throws it out the door for many folks. I've got a bucket out here - so if you come through South Dakota you are welcome to use what you need.
Lead Driver
Joined: Sep 2005
Posts: 9,399
Likes: 188
From: Norco,CA
The new sheafers diff is 80-140 syn. But like you said, 5 gallon buckets. I talked to the rep today and ordered two cases of 7000 oil syn and there trans fuild 204S. Going to run this in my boys truck then mine when its time. The reps trying to find me the diff fuild for fleet customers in smaller containers but if not I'm using amsoil in the boys because he's towing 16000#. My neighber use it and said the temp goes down much faster when towing. As you climb the temp goes up quick but the motorcraft would stay at that temp where the amsoil droped back down very quickly. Just my 2 cents. Chet
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Peter Richards
Clutch, Transmission, Differential, Axle & Transfer Case
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Jun 16, 2007 09:50 PM
