Redline MT90 or MTL

for a polo mkIV gearbox?

i know its MT90 for 02A's, and MTL for 020's, but what box has the polo got?

 

bump

 

Is the spec for the oil GL4 or GL5, in the handbook? That'll tell you which to use.....

 

don't have a handbook for it

or a haynes

well...its not my car!

 

ok, i can find out tomoz...which fluid for which?

 

its supposed to have GL4

 

That's MTL as a swap then, though Redline claim you can use either. But the 020 boxes need a GL4 and they don't reccomend MT90 for those, so I'd stick with MTL....

 

is MTL ok for a VR box?

 

VR box wants MT90.....

 

doh...was hoping its the same as my vr6...i useed up two whole bottles of MT90 and it ain't quite full...so wanted to share a bottle with the polo.

never mind.

 

im confused, whas the 02a to have then mt90?

 

yep.

so the vr6 and gti mkIII's use MT90, mkII's use MTL
Edited by: acf8181

 

Here's a question:

You bung in some redline oil into your gearbox which has been running original oil for 10+ years, surprise it feels better.

Has anyone actually done a proper test and replaced with OE spec oil then replaced that with redline oil? What's the difference then? It's similar to ppl replacing clogged up paper filters with brand new cotton ones.

 

Yup.

I drained mine of the original factory oil a couple of months ago and replaced it with VW mineral oil. I ran it like that for a week to flush the gearbox and it made no discernable difference to the weak synchromesh on 2nd and 3rd when cold.

After a week I changed to MTL and the gearchange is sweet as regardless of gearbox oil temp. The difference was noticeable, but my synchromesh is a little tired. If it was brand new I wouldn't expect to notice much of a difference.

Simply put the synthetic oil circulates and lubricates as well when cold as it does when warm. There's a proper explanation on Redline's website if you're interested involving oil layer thicknesses etc.