R150F and GL5
10-26-2017, 02:04 PM
#1
R150F and GL5
The FSM for 1989 states that the R150F manual tranny can use a 75w90 or 80w90 GL4 OR GL5 gear oil.
I have been hunting for cheap GL4 gear oil for my upcoming tranny oil change and popped open my FSM to see this. GL5 can be had for $5 a quart.
Is this no GL5 stuff hype? Can someone chime in who runs GL5 in the R150F?
I was told by a tranny shop that the GL4 craze is bull˟˟˟˟, and that ten years ago we were all fine running GL5 in our GL4 and 5 trannies, but now a few GL4 oils returned to the market and corrosion talk came about. Guy said in thirty years he has never seen this happen with GL5.
I have been hunting for cheap GL4 gear oil for my upcoming tranny oil change and popped open my FSM to see this. GL5 can be had for $5 a quart.
Is this no GL5 stuff hype? Can someone chime in who runs GL5 in the R150F?
I was told by a tranny shop that the GL4 craze is bull˟˟˟˟, and that ten years ago we were all fine running GL5 in our GL4 and 5 trannies, but now a few GL4 oils returned to the market and corrosion talk came about. Guy said in thirty years he has never seen this happen with GL5.
Last edited by 89fourrunner; 10-26-2017 at 02:18 PM.
10-26-2017, 03:05 PM
#2
Registered User
Lottsa people run GL5 in Toyota trannies with no problems.
I don't, I use GL-4, but I can source GL-4 oil for less than $60 for a 5 gallon pail.
Some older trannies shift a little better using GL-4 because it is less slick than GL-5 and worn syncros can use the help
I think that the corrosion issues that GL-5 once had have been resolved, but I can't document it.
I do know that more than 30 years ago VW cautioned against the use of GL-5 in their trannies.
I don't, I use GL-4, but I can source GL-4 oil for less than $60 for a 5 gallon pail.
Some older trannies shift a little better using GL-4 because it is less slick than GL-5 and worn syncros can use the help
I think that the corrosion issues that GL-5 once had have been resolved, but I can't document it.
I do know that more than 30 years ago VW cautioned against the use of GL-5 in their trannies.
10-27-2017, 04:14 AM
#3
If lots of people run GL5, that is all I need to hear. Between that and the factory service manual saying it is recommended, I cannot see why I would not use GL5 at $4.70 a quart over some specially oil companies GL4. I even think $10 a quart of Dino GL4 is too much. It is gear oil. GL5 it is. I will report results. I am going to use the cheapest stuff I can find, which is "TRAVELLER" brand 80w90.
10-27-2017, 02:06 PM
#4
I finished my drain and fill. I actually did everything (rear diff, front diff, transfer case and manual transmission) all with TRAVELLER 80w90 @ $4.70 cents a quart. It is GL5 MT1, so it should be yellow metal safe, as the MT1 rating has buffered sulfur. This stuff can be had at Tractor Supply Company. I am hard pressed to find gear oil any cheaper anywhere. It is manufactured by Warren (but labeled TRAVELLER) so it is decent stuff.
I did everything for $42.70 cents.
I only test drove it for a short time, but thus far it is just as smooth as it was, no shifting issues. In and out of all gears with ease.
I will definitely keep a vigil on possible issues but I find everything to be smooth and quiet thus far.
I would love to run Redline but I am not shelling out $60 for the transmission alone. It has almost 400,000 miles on it.
I did everything for $42.70 cents.
I only test drove it for a short time, but thus far it is just as smooth as it was, no shifting issues. In and out of all gears with ease.
I will definitely keep a vigil on possible issues but I find everything to be smooth and quiet thus far.
I would love to run Redline but I am not shelling out $60 for the transmission alone. It has almost 400,000 miles on it.
