Differential stopped leaking - No more Amsoil

[John Berger]

Before anyone gets the impression that I'm flaming Amsoil, let me tell you that I am not. I still believe in the product, but the only thing that has got my leak to stop is draining all of the gear lube out of the differential and adding straight 80W-90 gear lube. Every pinion seal problem I had occurred with Amsoil 75W-90 or 140 in the differential. My truck may have an imperfection in the driveline that is so small that the synthetic is finding the "weak" spot, so to speak. I don't know, but what I do see is a dry differential bottom and that is nice. Any suggestions for a high quality non-synthetic gear lube. I put Valvoline in the truck this time. I plan on changing the lube every 15-20K, depending upon how many miles I tow. TIA



John

 

[TwoSlick]

John,



The best petroleum gear lubes I've seen are those made by Lubrication Engineers (LE). I believe they have a 80w-90 or straight 90wt you can run in the rear diff. I don't know how cold it gets where you live, however, and that would be my only concern.



FWIW, I have customers running the Amsoil gear lube in everything from 2-cycle motorcycle transmissions to OTR trucks with no leakage problems. You have an imperfection in your differential that should be fixed under warranty!



TooSlick

 

[John Berger]

I do not disagree with you. It's finding the imperfection. The truck runs fine. I've been through a big run around over the last 4 or 5 weeks. When it runs fine and it doesn't leak, it's really difficult to spend the time away from work (which is on my dime) and my photography business (again on my dime) trying to track down a problem. I've spent way to much time on the truck that last few weeks trying to get this problem resolved. The dealer that will be working on the truck if the leak occurs again now knows the history. The way I see it is I've got 46K or 32 months left on the drivetrain warranty. If there is a problem it will rear it's ugly head again, I'm sure. Thanks for the response. I expect most will echo your sentiments.







Updated - 10/16/01 I have Amsoil lube back in the differential. As the previous poster stated, it was an imperfection. I had the entire housing replaced under warranty in August. I wanted to update this particular thread, because of the potential to make Amsoil look bad. Just wanted to note the fix, also