Looking for some advise on using Redline to hide a crunchy 4th gear.
I have a Legacy GT BP5 5 spd that has started to grind a bit going from 3rd to 4th. I haven't owned it long and am pretty p1ssed that this has started happening.
I changed the gearoil last weekend with fresh Castrol Multitrax, could only find 80w90 (not the recommended 75w90) and now the crunch is worse
So, I talked to some gearbox rebuilders, who say redline is no good and I should fork out for a rebuild instead. I know thats the 'best' thing to do but I'm not ready to splurge another grand on it.
What I want to know is... is it okay to use this oil on subaru trans? should I go straight LW shockproof or do a blend (50/50 redline and 75w90)?
Is this stuff going to cause more probs in the box? or are the rebuilders just trying to take ma cash
I've googled and most results seem to say its ok, but there is the odd one saying "don't do it". Some are suggesting don't go straight redline, use a cocktail instead, others are saying get Subaru Extra-S (I did ring Armstrong about this, they had no idea what I was on about :-\)
Any advice, suggestions or horror-stories would be greatly appreciated