Gearbox/Diff oil

[Motion-Mx]

Hi, going to change the oils on the car,just wondering how much Gearbox oil I need? I have an 03 STi (UK car) I'm going with millers I think 75/90,should i use the standard stuff or go with the new Racing NANO oil? also the manual suggests the same oil goes in the diff is that correct? thanks,anything i should know before changing the gearbox and diff oils? thanks,

[mike h]

Take out the filler plug on the diff before you drain it just in case it's seized. Be a bit of a bugger if you drain it and can't refill it!
I use a large syringe (50ml) and a 10mm pipe to refill the diff due to the lack of room to swing a bottle about.

Refill the gearbox via the dipstick tube. I use a funnel with a long skinny tube, do it slowly though because it over flows the funnel!!

I have a 94 WRX, unsure if amount of oil is the same but i use the same in both.
3.5l in the box, 0.8l in the diff.

[M9JOC]

What tool do you use to get the draining plug (square shape indent) out of the rear diff??

thanks

[Motion-Mx]

thanks Mike,

half inch ratchet I think... can anybody confirm the amount I need?

[oilman]

If you're using the Millers CRX 75w-90, you can use it in the gearbox and diff and 5L will cover both. The gearbox takes 4.1L and the diff 0.8L.

75w-90 Gear oil

Cheers

Tim

[Motion-Mx]

great,thankyou

[mike h]

If you haven't got a sump plug tool then a 1/2 inch ratchet does the job.

[Motion-Mx]

do the non DCCD car's still have a L.S.D? if so is the millers CRX 75/90 the right oil?

thanks,

[oilman]

For the rear LSD cars, use the Millers CRX 75w-90NT LS or as always in Subaru diffs, the Silkolene Syn 5

[Motion-Mx]

I'm not even sure if the 03 STi's have an LSD? can anybody confirm..it's a UK car.

[Motion-Mx]

anybody?

thanks,