Royal Purple Synchromax

[Bob The Builder]

I just have a quick question about Synchromax. What is the weight of this oil? Might it work in a Toyota Tacoma manual tranny?

I tried a search for it, but couldn't find anything of much importance. Thanks.

 

[Bob The Builder]

bump

 

[jaj]

It's an ATF-weight (7.5 Cst or so at 100 degrees C) gear oil. I've no idea about your Toyota, though.

Cheers
JJ

 

[BrianWC]

Try the transmission fluid forum.

 

[acewiza]

I run it in the G360 5sp in my 91 Cummins Diesel. Seems to work fine, shifts alot smoother than the motor oil called for in the manual. Although they do say ATF is a suitable cold weather substitute, so jaj's comment makes sense to me.

 

[unDummy]

Synchromax can be used in transmission's that require ATF, thin MTFs, and 20wt or 30wt motor oils.

It should NOT be used in place of 85wt or 90wt gear oils.

What is the requirement for your transmission?

 

[Bror Jace]

Bob, doesn't your 'Taco call for a 90 weight gear oil? The use of a thin, ATF-type oil in tranny may be disastrous.

If you like the Royal Purple brand, you might opt for Max Gear instead.

Definitely start with a product in the same weight called for in your manual. I prefer the Specialty Formulation fluids.

--- Bror Jace

 

[Bob The Builder]

Hey guys...yes, my taco does call for a 90 weight gear oil. Here's a link for redline's oils for manual trannies. What do you think of it? http://redlineoil.com/products_gearlubricants.asp?subcatID=18

 

[TheLoneRanger]

The Redline MT-90 is what I'd use, because of the higher viscosity.

I can attest to the synthetic oil (vs mineral) shift qualities. My Bronco specs the same 90W trans oil as your Taco, and after a change to Valvoline synthetic 75W90 it shifts much better than with the mineral 80W90.

TLR

 

[bmwtechguy]

Support the BITOG board sponsors and get some Specialty Formulations 75W-90 MT fluid, or some 75W-90 GL4 MT fluid from one of the Amsoil guys. In my opinion, you could not go wrong with either of these MT-specific fluids. Have read positive comments on both. I have used the MT-90 as well, and it does a good job too.

 

[gtx510]

quote:

---

Originally posted by bmwtechguy:
Support the BITOG board sponsors and get some Specialty Formulations 75W-90 MT fluid, or some 75W-90 GL4 MT fluid from one of the Amsoil guys. In my opinion, you could not go wrong with either of these MT-specific fluids. Have read positive comments on both. I have used the MT-90 as well, and it does a good job too.

---

ditto
Redline 75W90NS is good stuff too.

Liqui-Moly (Lubro-Moly) 75W90 also shifts well and is fairly thin for a 75W90.

 

[wander2039]

Synchromax helped my Rangers 5spd with easier shifting and seems to let me keep it in a higher gear at lower speeds. But it calls for ATF. Any MTF formulation would probably work as good as another. I was going to run Redline, even had it ordered, but AA's poor customer service made me pay more for Napa's royal purple.

 

[Tremo]

I use Synchromax in an 88 BW-WC T5 box in my Camaro. Works fine.