Tranny & Rear Axle Fluid Change

I am the proud owner of a white, very cherry 1990 MIata with 49,000
miles. It's a 5-speed. I was reading the manual last night, and it
recommends changing the tranny and rear axle fluid at 6 yrs/ 60K. I am
not sure whether this has ever been done or not (the records I have
don't indicate it has been). Should I go ahead and change both of
them? I know with some tranny's they're sometimes better left alone
(I'm thinking of older automatics), but I can't imagine that's the case
here. Any tips on changing these (I plan to do it myself). It looked
fairly straightforward in the owner's manual. Thanks!

Check miata.net. To get the oil in the trans, you'll need
either 3' of tubing and a friend, or a pump. The
differential is a little easier because there is more room.
Group wisdom recommends Red Line MTL for the transmission
and MT-90 for the diff.

Randy


"Tom" > wrote in message
oups.com...
>I am the proud owner of a white, very cherry 1990 MIata
>with 49,000
> miles. It's a 5-speed. I was reading the manual last
> night, and it
> recommends changing the tranny and rear axle fluid at 6
> yrs/ 60K. I am
> not sure whether this has ever been done or not (the
> records I have
> don't indicate it has been). Should I go ahead and change
> both of
> them? I know with some tranny's they're sometimes better
> left alone
> (I'm thinking of older automatics), but I can't imagine
> that's the case
> here. Any tips on changing these (I plan to do it
> myself). It looked
> fairly straightforward in the owner's manual. Thanks!
>

If you look down about 12 posts, I posted a similar question about "Owners
Manual".

Chris D'Agnolo posted a great answer that gives the weights and amounts of
fluids.

Tim




"Tom" > wrote in message
oups.com...
>I am the proud owner of a white, very cherry 1990 MIata with 49,000
> miles. It's a 5-speed. I was reading the manual last night, and it
> recommends changing the tranny and rear axle fluid at 6 yrs/ 60K. I am
> not sure whether this has ever been done or not (the records I have
> don't indicate it has been). Should I go ahead and change both of
> them? I know with some tranny's they're sometimes better left alone
> (I'm thinking of older automatics), but I can't imagine that's the case
> here. Any tips on changing these (I plan to do it myself). It looked
> fairly straightforward in the owner's manual. Thanks!
>