Recommended Diff Oil and amount
Recommended Diff Oil and amount
Author
Discussion

wycoller

Original Poster:

568 posts

202 months

Friday 24th February 2012
quotequote all
Changing out my diff , type GKN what is the recommended oil and how much does the diff take and any tip[s will help
thanks Jim

spend

12,581 posts

275 months

Friday 24th February 2012
quotequote all
I use the heavier Millers CRX LS 75w140 NT Jim, there is also the standard LS 75w90, but the heavier one gives the diff a bit more torque shock protection IMHO. Both are fully synthetic so heat & longevity is enhanced.

It takes over a litre & less than 2 to fill.

Filling depends on the case you have - they can be plugs on the offside + underside & rear..

Easiest way to fill is run some tube down the wheel arch and connect a high funnel clamped on workbench (whatever) so you can leave it to trickle in. Even with warming the stuff is still like treacle!!! A certain southener always seems to dislike my approach of jacking the car up to raise the plug a little & overfilling, so making sure you've got the full dose in (having trashed my diff not getting it properly full.. yes it started dripping out.. but that was more the cohesion I think) I don't take chances anymore and waste a little oil. Just level the car off & let the excess drain when you've finished.

carsy

3,019 posts

189 months

Friday 24th February 2012
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+1 for the 75w140 in my GKN. I went for Castrols though.

Simon says

19,341 posts

245 months

Friday 24th February 2012
quotequote all
spend said:
I use the heavier Millers CRX LS 75w140 NT Jim, there is also the standard LS 75w90, but the heavier one gives the diff a bit more torque shock protection IMHO. Both are fully synthetic so heat & longevity is enhanced.

It takes over a litre & less than 2 to fill.

Filling depends on the case you have - they can be plugs on the offside + underside & rear..

Easiest way to fill is run some tube down the wheel arch and connect a high funnel clamped on workbench (whatever) so you can leave it to trickle in. Even with warming the stuff is still like treacle!!! A certain southener always seems to dislike my approach of jacking the car up to raise the plug a little & overfilling, so making sure you've got the full dose in (having trashed my diff not getting it properly full.. yes it started dripping out.. but that was more the cohesion I think) I don't take chances anymore and waste a little oil. Just level the car off & let the excess drain when you've finished.
Dave! do you mean you made a mistake once? eek ,,,,,,, hehe

spend

12,581 posts

275 months

Friday 24th February 2012
quotequote all
Simon says said:
ave! do you mean you made a mistake once? eek ,,,,,,, hehe
Who me!!! never... a mistake is when you do it yet again (and didn't learn from experience) wink


Simon says

19,341 posts

245 months

Friday 24th February 2012
quotequote all
spend said:
Simon says said:
ave! do you mean you made a mistake once? eek ,,,,,,, hehe
Who me!!! never... a mistake is when you do it yet again (and didn't learn from experience) wink
laugh

wycoller

Original Poster:

568 posts

202 months

Tuesday 28th February 2012
quotequote all
sorry or ya all not getting back to you thanks Dave gone for the heavier oil. Stuck in USA for a year how about this one
Choice of
LS2/LS3 Corvette
Camaro SS
Shelby 500
what would you get, f the cost you only live ince and if i dont spend it the wifes future husband will when i pop me clocks.

SSPPGG

2,120 posts

226 months

Wednesday 29th February 2012
quotequote all
the vette handles better, camaro...nah, the shelby...probably

PeteGriff

1,262 posts

181 months

Wednesday 29th February 2012
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wycoller said:
sorry or ya all not getting back to you thanks Dave gone for the heavier oil. Stuck in USA for a year how about this one
Choice of
LS2/LS3 Corvette
Camaro SS
Shelby 500
what would you get, f the cost you only live ince and if i dont spend it the wifes future husband will when i pop me clocks.
Its got to be the Shelby 500! cool Go for it mate.

wycoller

Original Poster:

568 posts

202 months

Thursday 1st March 2012
quotequote all
PeteGriff said:
Its got to be the Shelby 500! cool Go for it mate.
Thanks pete
jury still out but like to have the Shelby as Corvette would be nice but as a Daily driver in Houston traffic with all the undertaking etc i feel would be a bt stressful.
If i go for whatever i,ll post picts.
cheers Jim