Quick NP231 Fluid Question

[87manche]

Seafoam works well, but i've always been told not to mix it with your oil if your motor has alot of miles on it. Its just personal opinion....but I dont see the benefits of running it through the motor over risking creating an oil leak somewhere because it ate through one of the seals.



I know he has a manual....I know the kid personally. Im just saying i've never heard of someone putting 10w-30 in a transmission (auto or manual)

aisin recommended 10w30 for the manual transmission equivalent of the AX-15 in the toyota trucks.
that said. Redline GL3 MT90 is the best thing I ever did for my trans.

 

[96XJ_4.0]

I have put dex3 in an old corollas motor to unstick some litters, that said I have also used 5w20 in transmission.

FYI royal purple tranny fluid is same as their oil. All depends on weight (viscosity)

 

[garr]

FYI royal purple tranny fluid is same as their oil.

Please explain?

 

[xjchris98]

Redline GL3 MT90 is the best thing I ever did for my trans.

Thats what I hear from the guys with manuals. Not sure of the difference between MT90 and 10W-30, but I know of atleast a dozen people who swear by Redline lubricants...

 

[95' heep]

"yellow metal"

whats that? you mean brass or bronze?

 

[kastein]

Yes. Synchros are made from bronze, iirc, though it might be brass. Both are copper alloys (brass is copper/zinc, bronze is copper/tin.) The lubricants not compatible with yellow metals contain amounts of sulfur that corrode yellow metals. Yellow metal compatible lubricants contain lower amounts of sulfur that do not cause damage.