Hi , changing my gearbox and rear diff oil to Redline. Does anyone know what type(viscosity) to use? Its for a 5 speed MY01.

Cheers
Clint

apparently redline HWSP works better compare than LWSP for g/box. as smooth as LWSP with a bit more protection on the box

hi boys i just changed all my oils to redline and the gearbox oil west racing uses is RL148-4 l/weight shockproof oil feels much better shifts

wait till it clogs the galleries.

ive changed to red line and i found my shifts were better but my gear box became alot noisier which gets annoying after a while

hav u had problems andy with yours

Oh in ya face :P

Andy hasnt got a WRX, but he works for RMS.

What kind of damage have you seen from Redline in gearboxes, Andy?

Prolonged use will clog sensitive oil galleries in the gearbox due to the oil seperating and plasticising (spelling?). When the shift starts getting notchy you NEED to change the redline. This can be after only 10,000k's or longer pending on driving style etc. It has its positive's as well as its negatives. Some people won't touch redline due to this and other reason, whilst others praise it. My suggestion is if you intend on using it, be prepared to change it every 3 engine oil changes, i.e. every 18months.

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Mine is definitely due then...better do it asap!

i'm trying out the new motul stuff from tenagah, getting it done on weds so if you want to wait till after that i'll give you a back to back review of the motul vs the redline which i have been runnign for the last 50,000 k's changed every 12,500ish