what oil should i use in a differential?

[Baz116]

done a search but couldn`t find it.

i`m fitting new diff to my fd. what oil should i use in the differential?
thanks

[David Nock (RIP)]

You need the exact oil spec from Mazda. (Handbook). However I use  the correct grade of Valvoline SynPower fully synthetic gear oil in the gearbox and diff of our FB.(75-90 Grade). Very quiet and smooth with it in.

[banned advertiser]

we have supplied 75w90 Max Gear for several cars.
http://www.rotaryart.uk.com/acatalog/Royal_Purple_motor_oils_Max_Gear.html

[RemarkLima]

Just put in Silkolyne Pro-R 75-90 I think it is, the race gear oil in both diff and gear box and it\'s superb, made a huge difference! I can now change gear when it\'s cold and once warmed up it\'s all silky smooth, nice

[kev-yorks]

Depends what you want with the car and power outputs normal 75w90 is fine but if moneys no object then go with a full synthetic. Unless you\'ve an aftermarket plate type diff and then you need a wet clutch type oil.
Kevin

[Baz116]

car running 343bhp at fly, standard diff, so fully synthetic 75w90 gear oil is best then??

[banned advertiser]

yes def go fully syn

[RedRummy]

just a quick Hijack...

what oil should I out in my diff... its apparently a "FEED spec 2 way diff" (no idea what the FEED spec bit refers to - are their diffs different?)

anyway, what spec oil should I put in it...

[m4drx]

sunflower

[RedRummy]

sunflower

:spank :flamed :Hammer