Gear oil for your 3rd Gen.??

BigMau

BigMau

Well-Known Member
Anyone change the front and rear diff. gear oil and the oil in the transfer case?? I believe Toyota specs 75w-85 for the front and rear diff and 75w for the transfer case?? Can you use 75w-90 syn. gear oil oil for all three??
 
Thanks for the reply B-man. I was thinking of using Ravenol 75w for the transfer case. I'm guessing a quality syn 75w-90 will do the job for the front and rear diffs. I have heard lots of info regarding Amsoil products.
 
BigMau said:
Thanks for the reply B-man. I was thinking of using Ravenol 75w for the transfer case. I'm guessing a quality syn 75w-90 will do the job for the front and rear diffs. I have heard lots of info regarding Amsoil products.
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I've used Amsoil ever since I got my '17OR and no problems......I've used Ravenol in the TC and has performed great. I'm sure any 75-90 will work for ya. Just my personal choice to use synthetics in the diffs.
 
I use Amsoil 75W90 front and rear, and the Toyota fluid for the transfer case. Nothing against Ravenol, just got a great price on the Toyota fluid on Ebay.
 
Joisey said:
I use Amsoil 75W90 front and rear, and the Toyota fluid for the transfer case. Nothing against Ravenol, just got a great price on the Toyota fluid on Ebay.
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I was thinking of using amsoil for the fromt and rear diffs. However, I saw 6 quarts of Redline 75w-85 gear oil for 78.00 bucks on ebay. I have been watching loads of Amsoil youtube vids by Eben Rockmaker. That guy kinda reminds me of the Schamwow guy from a few years ago.
 
BigMau said:
I was thinking of using amsoil for the fromt and rear diffs. However, I saw 6 quarts of Redline 75w-85 gear oil for 78.00 bucks on ebay. I have been watching loads of Amsoil youtube vids by Eben Rockmaker. That guy kinda reminds me of the Schamwow guy from a few years ago.
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When I had my Ram and was on the Ram Forum there were a lot if red heads over there that swore by redline. If I remember right redline makes a couple different grades of gear oil, just make sure it has the proper GL rating. If you go to the redline website you can check it out before you order. Ive never heard any problems with redline however my choice is Amsoil, but thats just me.
 
Yeah. I just noticed that Toyota specs 75w-85 GL5 for the diffs. I also noticed that most people are using 75w-90 GL5. I’m guessing using a quality synthetic gear that meets specs... should do the job.
 
I would like to see actual figures showing the fuel savings between using 75W-85 and straight 90 wt synthetic gear oil from the same manufacturer. I'm sure there is an increase of fuel mileage for the first two miles in cold weather. After this the fluid is sufficiently warm.
 
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