Don't put anything on the rubber gasket. I've never seen a filter come without a gasket, but they always come with a cheap cork gasket. That gasket belongs in the trash.

 

I know you said that the transmission fluid temperature has been normal, but I don't think the fluid would be brown and burned looking if it hasn't been overheated at one time or another. I think the basic principle is that for the transmission to fail the fluid has to first overheat and lose it's lubricating properties. The mechanical parts then fail in short order. If it were my truck I'd get an auxiliary transmission fluid cooler before I towed that 5th wheel.

Pretty sure that Mobil 1 synthetic transmission fluid isn't much more expensive than regular fluid and is considerably less than $15. I know what you mean about not wanting to spend $15 a quart when the money needs to be spent on other work.

I stuck one of those rare earth magnets to the bottom of the pan (on the outside) and when I pull the pan I find a collection of metallic powder where the magnet is. The magnet is about half the size of a hockey puck and once it's on there it just about takes a cold chisel to get it off.

 

Schaeffer's 'All Trans' fluid is used by the top trans builders. Its half the cost of Mobile 1.

 

That's what I'm looking into right now. Asked question about getting the sample testing supplies with order and haven't heard from them yet. Do you use the 204? Do you get it by the 5 gallon? I can't find the Mobil 1 or Valvoline full synthetic priced anywhere.

 

Mobil 1 ATF is about $10 bucks a quart at O'Reilly's. Can't imagine that Schaeffer's sells theirs for $5. Good to know that the top builders use Schaeffer's though.

I saw a Schaeffer's magazine ad years ago where they showed a graph of vibration level on an electric motor ball bearing before and after it was greased with a Schaeffer's grease. The vibration level dropped by about a factor of 10 on the "after" chart until I looked closer and saw that all they'd done was change the scale of the graph to fake the results. Been suspicious of Schaeffer's ever since and I've never used their products.

 

Was that Mobil ATF at OReillys Full Synthetic? When I typed synthetic trans fluid I didn't find any results.

 

It was Mobil 1 ATF which is synthetic ATF. Here's a link:

List: Synthetic | O'Reilly Auto Parts

 

Not sure what 204 is? I buy it from a local distributor who gives me the sample kits. I get it in a case of 12 quarts.


I think its about $7 a quart actually. There is two reasons I use Schaeffer's. First of all, the 15W/40 oil that they call 7000 is a partial syn oil. It has moly in it and I've been testing oil for 11 years. In all that time the only oil that didn't shear down in weight is the Shaeffer's. I pull really heavy and our hpop's are deadly on oil velocity. Second reason I use Schaeffer's oil is I got a John Woods trans and he puts Shaeffer's All Trans in it. BTS also uses All Trans.

 

Here's a link to the Schaeffer All-Trans fluid that we were discussing.

Schaeffer 204SAT ALL-TRANS Supreme Transmission Fluid ATF (1-Quart)

 

The 204 is the transmission fluid. I am looking at the 7000 for my next oil change. Thats a good price for it wish I could get it that cheep. I'll use it anyway. I must buy direct because we don't have a distributor around here anywhere.

 

Someone was saying Amazon has it?

 

Yes they do and Ebay has it also but the shipping might send you into the poverty level. LOL. I did place a order on Amazon for it tho. No free sample kits there..

 

I think you said that you tried to get ahold of them? Try their web site email or phone number and say you ordered some and would like the test kit.

 

I have sent them several messages via their web site. I have purchased the sample kits...three of them...via their web site. Was just kinda looking to get a free one; Thought since I purchased via Amazon they wouldn't likely give me one free but I will try.

 

Oh, I see now. Might be worth a try to show them your receipt from buying their oil and say you would like a free one? How much did they charge you for the three kits?