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[star_whites]

Does anyone know what oil I need to top up the rear diff amnd also how its done??

Is there a levekl plug and how much should it have??.....Is there a set level or is it like the autobox where u let it fill until it runs out of the filler hole??

[damon80]

IIRC, SAE90 semi-synthetic (with LSD additive if it's an LSD diff).

Fill it till it comes out of the hole.

Just to add - the filler plug is half-way up on the drivers side of the diff, need a Torx bit to get it out (T30 seems to stick in my mind, but not 100% on that...)

[RobG]

IIRC, SAE90 semi-synthetic (with LSD additive if it's an LSD diff).

Fill it till it comes out of the hole.

Just to add - the filler plug is half-way up on the drivers side of the diff, need a Torx bit to get it out (T30 seems to stick in my mind, but not 100% on that...)

T50 I believe

[damon80]

Yep, you're right Rob - just dug out the guide on changing the diff oil, and T50 it is...    :
http://www.omegaowners.com/forum/YaBB.pl?num=1161520937

[star_whites]

thanks chaps, the guide does not say, but are u better off doing this warm or cold??

[damon80]

Don't think it really matters TBH...  Although I'd be inclined to do it cold to aviod burning myself on the exhaust