Thread: sr20 tranny fluid.

is the syncomesh really as good? i ran heavy shock proof in my turbo car and was wondering bout the synchomesh when i saw it at work (advance auto).

theres a guy locally here who has like 10 bottles on redline mt90 for 5 each, was thinking since its so cheap to just drop some in and try it out and see how good it works

they are two WHOLY different lubes... go back to when you poured that red slushy out of the bottle? must have taken forever and day, however the synchromesh is quite thin compared to that, would i run it in a turbo car? dont know, however as far as gear protection it does a damn good job, especially for problematic gearboxes

example:
s14 95 240x KA24de and stock tranny, on regular 80w90 gear oil it had problems grinding third and fifth, however when we switched the oil to synchromesh the grind problems went down significantly

my b14 and NX both, same 80/90 0 degree cold start, i had to double clutch leaving for school in the morning just to get between gears other wise it would lock out/grind, however on synchromesh i could start up and within seconds the trans shifted like butter, no grinding no anything

ive run it daily driving , high rpm slam shifting etc etc...and anyone that knows me knows im one ruthless bastard when it comes to my transmissions...

it greatly reduced lockout in my NX(old fifth gear popout trans) and in my friends b13 which often locked out under high rpm load( i dislocated my right shoulder because of that damned thing)

cool i'm n/a ve now. maybe i'll try it out then.

I only keep it as an option because it's the only other GL-4 fluid I've ever found. If you can't rock Redline the Penzoil Synchromesh is just about your only other option.

deff a safe boost, i wont recommend it for any one pushing boost , only because i havent tried it on that...for ve yeah id doit

ive been using pennzoil synchromesh in my cars for years. works good and havent had any shifting issues at all. its just easier to got to the local auto parts store to get it then ordeing stuff and waiting for it to arrive.

Anybody? .....

depends, how do you drive the b15? standard service its your choice, as far as ive seen MT90 is a great product from them, if you beat the hell outta it you may wanna go shock proof medium

in any case shameless plug but for NA i still recommend penn. synchromesh

either way upgrading your gear oil isnt going to hurt you

No such product... =/



Let me use Nissan OEM fluid as our base. I believe the Penzoil Syncromesh is just as good or better than OEM. It is the only GL-4 fluid easily found locally without going to Nissan so it's a good choice.

The Redline MT90 fluid is better than OEM. Simple as that. No downsides. Great for daily drivers, especially those in cold climates as it protects better than OEM but is less viscous.

The Redline Shockproof lines (super lightweight, lightwieght, and heavy) have their own advantages and disadvantages is our transmissions. The super lightweight is not designed for transmissions with syncros, so don't use it.

The lightweight is designed to protect and cushion the gears, remain viscous at low temps and lessen the HP loss due to sheering forces of the fluid. It does all this while compromising syncro operation, so again, not great for a daily driver.

The heavy shockproof is designed to protect and cushion the gears, but doesn't put emphasis on remaining usable in low temps or worrying about losing HP due to sheering forces. It's thick stuff. Because of this, it's use with syncros is usually fine, and it's recommended for turbo cars that need the protection but won't care about the HP loss. It's up to you if you want to use this over the MT90. It likes to be a bit warm before it works well.

Personally, on my 300 WHP B13 with stock transmission, I'm using a 50/50 mix of MT90 and Heavy Shockproof. I plan on going to a 75/25 mix of MT90 and Heavy Shockproof after experiencing what I deem to be unacceptable operation while cold.