Gear box fluid

[eyeballs]

Not sure about an inspection hole. I just drained it out the bottom plug, and filled it from the same size plug farther up (which happened to be angled up so I can't just stick a hose in to fill it). I expected it to start oozing out after close to 3 qts but it didn't, so I stopped at close to 3.5. Drain plug also didn't have a washer for some reason, I thought that was weird too.

Where is this inspection hole you speak of?

 

[flatlander937]

http://www.mazdas247.com/forum/show...r-oil-change&p=6374028&viewfull=1#post6374028

http://www.mazdas247.com/forum/show...hange-75w-90&p=6274672&viewfull=1#post6274672

You're probably overfilled a little bit. Maybe use a siphon to get the level correct, its supposed to be a bit below the inspection hole.

 

[eyeballs]

Thanks! Looks like it would've been alot easier to fill from there as well. Funny thing is I know I've seen that thread before, but of course when I finally change the tranny fluid I forget all about it!

 

[eyeballs]

So apparently 3.5 qts will fill it to the very top of the inspection hole, and to get it just below that hole I think I sucked out about 1/2 qt. Definate improvement in smoothness with the MTF, despite how nice and clear (and light green!?) the original fluid was. Hopefully I'll remember to get a mangnetic drain plug for next time.

 

[BigBlueDart]

So, I'm coming up on 40k of road duty (no racing, yet). Figured it would be the right time to change the oil, and I'm definitely looking for an easier shift. Can I get away with just ordering 3 qts? It just feels like a waste to order the fourth quart for that last .07.

 

[n8myton]

Yea I just ordered 3 qt and it was fine.

 

[BigBlueDart]

Yea I just ordered 3 qt and it was fine.

Thanks. I'll save myself the extra $17, then.

 

[ralstig215]

Just wanted to report in on running Amsoil Manual Transmission fluid 75w90; it is almost a little too thick for our cars.

It works really well when warm, but it takes a few minutes to warm up, about 2-3 miles for me. (I live in the mountains of West NC; rarely gets above 80 even in August)

I didn't notice a gas mileage loss, in fact; the exact opposite. I am getting 2-3mpg more.

I am very happy with it. Shifts much better than before.