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GU TD42 G/box oil

Posted: Thu Feb 09, 2006 8:12 pm
by GUte
G'day all. Can anybody recommend a good oil for the 5 spd in my GU? When I try and change down double shifting or not from fifth to fourth it will not shift down straight away. Wondering if there is a good quality oil someone might know of! Thanks for any heip.

Posted: Thu Feb 09, 2006 8:34 pm
by Tiny
try penrite

Posted: Thu Feb 09, 2006 11:49 pm
by jav
my gu is the same , all right up the gears and hard back down.

Posted: Fri Feb 10, 2006 8:37 am
by RoldIT
I use CASTROL VMX-M 75W/85, no prob.

Posted: Sat Feb 11, 2006 9:07 am
by Rental Power
try adding an additive calles nulon g70 improves shifting. I put it mine and made a difference.

Posted: Sun Feb 12, 2006 9:55 am
by GUte
Thanks guys, I might try the Castrol with the Nulon added.

Posted: Mon Feb 13, 2006 8:28 am
by rick130
Castrol Syntrax or Redline MT90.

Posted: Mon Feb 13, 2006 9:13 pm
by sparky
Been told redline is the go. Expensive but worth it apparently.

Posted: Tue Feb 14, 2006 9:44 am
by HL
If it is just sticking in 5th, check the colour of the oil. It maybe the dreaded 5th gear spline issue. The oil will be quite dark, bit like coffee colour, also will be quite smelly.
Mine started out that way, i.e. sticking in 5th after driving for a while. Ended up with new gearbox.