[dedonderosa]

I'm sure this has been beaten to death but Im finally due to change my transfer case fluid. I know toyota calls for the expensive 75w fluid. But I was curious to see if anyone is actually running it vs 75w90 which is available everywhere. When I called my dealer to price put the 75w they had no clue what i was talking about lol.
So just curious to know who's running 75w90 with no issues. Thanks guys

[azmcrae]

I used RAVENOL J1C1003 which is MTF-3 75W 2 years ago and no issues.

[Dynamo]

Red Line MT-LV 70W/75W GL-4 is what I use.

[CutthroatSlam]

Mobil Delvac Synthetic 75w90 and the truck now has 305K miles on it.

[T4R_Canuck]

Originally Posted by dedonderosa

I'm sure this has been beaten to death but Im finally due to change my transfer case fluid. I know toyota calls for the expensive 75w fluid. But I was curious to see if anyone is actually running it vs 75w90 which is available everywhere. When I called my dealer yo price put the 75w they had no clue what i was talking about lol.
So just curious to know who's running 75w90 with no issues. Thanks guys

I know a few guys that have come across deals on Toyota 75w gear oil and use it, but the majority of people I know, myself included 75w90 GL-5 for both axles and transfer case. I use Redline 75w90 GL-5, and Amsoil Severe Gear 75w90 is another pretty popular choice.

Please note: I make these comments as someone who has a modified, higher mileage vehicle that is self maintained and has zero warranty left, and most of the guys I run with are in the same situation with highly modified vehicles and no warranty.

[1000MPH]

I’ve been using Delvac 75w-90 but might try the RedLine MT-LV 70W/75W GL-4 next change. Just to give it a try.

[dedonderosa]

Any of you guys running the 75w90 notice any issues or shifting in 4wd harder or anything like that?

[CutthroatSlam]

Originally Posted by dedonderosa

Any of you guys running the 75w90 notice any issues or shifting in 4wd harder or anything like that?

Nope

[baldrik78]

Originally Posted by Dynamo

Red Line MT-LV 70W/75W GL-4 is what I use.

Same. Used it for 2 fluid changes so far. It's at least as good as the Toyota stuff.

[Whippersnapper02]

Either one.

[lewdog998]

tried to get the toyota oe 75w form the dealer...he said they do not even use that...they use bulk 75/90 Mobil 1

[Mike Beyers]

Valvoline 75W90 synthetic. No issues, shifts just fine.

[dedonderosa]

also just found this from someone who emailed toyota and got a response.

Would you use this instead of the $70 toyota fluid | Toyota 4Runner Forum [4Runners.com]

[CutthroatSlam]

Thanks for posting Toyota’s reply. Begs the question how many times this fluid question will be asked again on these forums. I’d put the over under at 50 over the next 3 years.

[Deuxdiesel]

I just ordered Royal Purple Syncromax for my TC and Maxgear 75w90 for the diffs. If anyone is interested, Royal Purple Direct has all those on sale, roughly about $16 per bottle. It ended up being $115 for all 7 quarts. Free ground shipping as well.