Anyone using this? Just wondering how it does. Thinking about using this or Mobil 1 syn 75W 90 to change the gear oil this weekend. It is a little cheaper than the Mobil 1.

Anyone using this? Just wondering how it does. Thinking about using this or Mobil 1 syn 75W 90 to change the gear oil this weekend. It is a little cheaper than the Mobil 1.


In looking at this study: Gear oil study (http://www.amsoil.com/products/gearlubes/whitepaper.aspx?zo=1025948)

It comes in 4th overall tied with Red Line, and behind, in this order:

1 Amsoil Severe Gear
2 Mobil 1 synthetic
3 GM Synthetic Axle
4 Castrol Syntec
4 Red Line Synthetic

All above mentioned were 75w-90
Good luck.

I just put in Mobile one this weekend. Got a killer price on it. $6 a quart. Should have done this 35k miles ago. I was amazed at how dirty and nasty the factory stuff was. X-fer case was brand new thanks to them changing out the rear seal less than 2k ago and changing out the fluid as well, but I still went ahead and put in 5w-30 synth instead.
I bet there was only 1-1 1/2 qts in the front dif and maybe 2 in the rear. Topped them off how they SHOULD be and very smooth shifting into and out of 4wd, cant hear or feel any clunk like I used to.

When I called Amsoil and asked why they didn't test Schaeffer gear oil, they said that they don't test "Industrial" lubricants against their products. They know they will be outperformed by Schaeffer products... :eek:

That's why I use Schaeffer... :D

Rob

I just put in Mobile one this weekend. Got a killer price on it. $6 a quart. Should have done this 35k miles ago. I was amazed at how dirty and nasty the factory stuff was. X-fer case was brand new thanks to them changing out the rear seal less than 2k ago and changing out the fluid as well, but I still went ahead and put in 5w-30 synth instead.
I bet there was only 1-1 1/2 qts in the front dif and maybe 2 in the rear. Topped them off how they SHOULD be and very smooth shifting into and out of 4wd, cant hear or feel any clunk like I used to.

Where did you get this price at?

My dad delivers for a local auto parts store. I got his price. Started buying a lot of things from there now I get his discount. Makes it kinda nice.

your lucky it is usually around 8-9$ a qt, but I did find somoe mobil 1 for 8.89 qt.

Yea normal price was 8.89 for the gear oil I got it for just under 6
Royal Purple was normall 6.99 I got it for just over 4

When I called Amsoil and asked why they didn't test Schaeffer gear oil, they said that they don't test "Industrial" lubricants against their products. They know they will be outperformed by Schaeffer products... :eek:

That's why I use Schaeffer... :D

Rob


I'm not trying to get smart with you, I really don't know anything about Shaeffer except what I just read on their website right now, but do they test their products against competitors? I didn't see it anywhere. I'm not saying you are wrong at all, but I'd like to see some info on this.

Go to their website and look up the info on their technical data sheets. No other oil company provides the detailed information found in Schaeffer's TD sheets. The info is provided as measurements to various ASTM, ASE, SAE and other Standards.
Attached is the Technical Data Sheets for their Supreme 9000 5w40 Synthetic Oil and #267 Gear Oil. You be the judge as far as information provided by Schaeffer Mfg. Try to find all the same information on Amsoil, Mobil, Chevron or any other oil company's website.
FYI, Schaeffer Manufacturing is the "oldest" oil company in the country, they were founded in 1839.

Rob

This has nothing to do with the post. I have heard about Schaeffers but I can't get it in my area except through a distributor where you have to buy a set quanity.

I don't think it's fair to say that "No other oil company provides the detailed information found in Schaeffer's TD sheets." There is some good info from DA-Lubricants, Mobil, Castrol, Shell, Penzoil and others. You've just got to know where to dig.

I like the base information available in PDS, but it's not the only story. Rather, it's a good starting point. Consistent UOAs are a great indication of how lubricants hold up, if you can sift through all the UOAs posted by people who hop from brand to brand all the time. Overall, I will agree that Schaeffers produces some very fine lubricants, that perform quite well in many environments.

Getting the "best" is often a compromise between how much you want to spend, how often your going to change lubes, how much personal effort you like to put into a job versus hiring it out, how convenient it is to get product brand (X, Y, or Z), and so on.

To the OP's question; I think a GL-5 rated "synthetic" like Castrol Syntec lube will work fine in his diff's. And if he get's it for a good price, all the better.

I don't think it's fair to say that "No other oil company provides the detailed information found in Schaeffer's TD sheets." There is some good info from DA-Lubricants, Mobil, Castrol, Shell, Penzoil and others. You've just got to know where to dig.

I like the base information available in PDS, but it's not the only story. Rather, it's a good starting point. Consistent UOAs are a great indication of how lubricants hold up, if you can sift through all the UOAs posted by people who hop from brand to brand all the time. Overall, I will agree that Schaeffers produces some very fine lubricants, that perform quite well in many environments.

Getting the "best" is often a compromise between how much you want to spend, how often your going to change lubes, how much personal effort you like to put into a job versus hiring it out, how convenient it is to get product brand (X, Y, or Z), and so on.

To the OP's question; I think a GL-5 rated "synthetic" like Castrol Syntec lube will work fine in his diff's. And if he get's it for a good price, all the better.


Very true and well said.

Thanks I am just going to get the castrol bc they have to order the mobil plus if I feel there are any problems I will try something else.