In my 1987 toyota pickup, 5 speed, i just replaced the clutch, and all that stuff. I was thinking that it probably wouldn't hurt to change the tranny fluid. I have a G52 tranny according to the tag inside the motor compartment.

According to my Haynes book, i should use API GL-4 SAE 75w-90 or 80w-90 gear oil. Anyone else have any other suggestions that's better? Also if i did use these, which one would be better? Tried searching but didn't really find much.

Thanks

 

I don't know what "va" is, so if you live in a cold climate, use the 75-90, And if you live in a hot climate, use either. Its rating system is just like engine oil. Synthetic or not is up to you. If you have any leaks...they will get worse with synthetic.

 

dakotawho,

You can run the 80-90w out where you're at. Grab some lucas gear oil additive while you are at it. It will take care of those old drivetrain components. I'm getting ready to replace all of the fluids in mine. That is what I will be dumping in there.

 

75w-90

Go with a synthetic. I got a great improvement out of my transmission when I switched from cheap oil to Mobil.

 

I run 75-90 in my truck. My G52 has been holding up well (knock on wood) to the 3RZ and shifts fine in various temps. I travel the country all year round...

 

Thanks for the replies guys!

Have one other question.. will swapping the tranny fluid change the shifting any? Will it become easier to go into each gear?

 

Depends on what you are currently running. If you have a GL5 oil in there now, GL4 will shift better and if you have conventional, synthetic will often be better at colder temps and will also run cooler:
- http://www.4crawler.com/4x4/4R_TechInfo.shtml#Fluids

 

Lucas is snake oil, waste of money IMO.

80-90w will do just fine, Synthetic if you feel like spending the cash but it's not necessary. The only benefit I've noticed with the synthetic is easier shifting while cold, and even then it's only because I float gears instead of using the clutch as long as I'm not in a hurry and not in traffic.

 

Any brands anyone recommends?

 

I put redline mt-90 in my 5 speed w56 trans , and I also put the same thing in my transfer case . its a synthetic, 75W90 GL-4 gear oil

 

Ha. I have used that for years. Never had mechanical issues in any vehicles that I have owned. If you like dry starts on your engine you can do whatever you want. When my ride lasts longer than yours you can say whatever you want. Just know this. I will spend less money in the long run than you will. Because my well oiled machine is properly maintained. My father used Lucas religiously. Traded a Volvo Eighteen wheeler in. It had a Detroit Series 60 with 750,000 miles on the clock. The dealer pulled the rods and mains after the trade. At 700,000 miles the maintenance program for Detroit states that the rods and mains get replaced. The dealer asked my father how come the bearings in his old truck did not have that much wear on them. Just sayin.

 

what Lucas oil do you use for that

 

For the engine you use lucas oil stabilizer. For the drive train they have 75-90w. They have pretty much everything lubrication wise.

 

redline mt-90 now its like a new tranny

 

If your engine has been run full of oil, it can't dry start. Dry starts are what happens on a freshly assembled engine that's not had the oil system primed. All lucas is is thick oil, why not cut the middle man out and just run the next viscosity up if that's what you're after? I've never put that ooze in any of my engines, and I've never had a lube related failure either, that's a poor way to test a product. "I haven't had a problem, must be working!" It doesn't hurt anything but your wallet, and if you like it, go ahead and use it, I can't stop you. I would like to try and discourage you taking the words on the bottle as fact and regurgitating them to the less knowledgeable.

Their actual oils are as good as anything else, I usually use Shultz, Shell and Redline though as that's what we have on tap at work. But, there are fewer oil producers than there are brand names, if it meets a given set of specs, it will work as well as another product meeting that spec.

 

So you're saying all brands of oils are created equal? Quaker State is same as Amsoil? Redline is same as Brand X from the local parts store? Really?

 

Walmart Supertech brand all the way!
Every oil has to meet a minimum spec. Main differences between oils are just usually additional additive percentages on top of that minimum spec.

http://www.bobistheoilguy.com/
^ if ya wanna get down and dirty

 

I have super tech 80-90w and Lucas oil stabilizer in my 5 speed.Shifts like a brand new one ,but we don't have them super cold climates like a lot of folks on here do.