Every 30k miles if you never did it and have over 80 miles i don't recommend changing it just drive it and forget about it.

 

IF you do a search you will find a lot of info on this topic.

If you search my username you will find a post I did with pictures.

IF you are going to do it with high milage, I suggest dropping the pan, replacing the filter/screen, seal and cleaning all of the funk from the bottom of the pan.
Also the magnets will be caked full of crap.

You will need five quarts of Matic-S.

Your G35 does have a dip stick.

If you can not find it, MAYBE you should not work on your car.
Remove the 10mm screw on the Tranny fill tube. The cover is a dipstick... Dipstick!

 

I'm no mechanic, but since you're asking my opinion, I'd say change the diff fluid ASAP. You've got heavy duty gears in there, and it takes heavy duty oil. I believe you're supposed to change that oil every 30k.

As it's been so long, the old oil will smell terrible and you'll likely see metal shards when you drain it out. Don't let it touch your bare skin. It drains fast and heavy, so be ready with a big pan and lots of newspaper underneath.

 

^^ That **** smells terrible new out of the bottle...

 

Sell the car lol

 

OK fine. It will smell *especially* terrible.

 

If you read, he stated he has an early '03. they in fact do NOT have a tranny dipstick, it's just capped off and bolted down.

 

Some very early G35 models did not have a dipstick... You are right.
There is no reason why he can't go to a salvage yard and get one for any 2004+ Nissan with AT.
Nissan does not vary the transmissions that much and most of the Nissan AT parts are interchangable.
One from a 350z, Titan or Frontier would work fine.

 

you can just order one as an upgrade for like $12, not a big deal.you just **** on him for not having one, thinking he did is the point

 

I don't think it's ever too late to replace fluids, especially ATF. What I'd never recommend is hooking up the tranny to a flushing machine. That can be bad news bears for a high mileage tranny. Simply opening the drain bolt and pouring in new fluid isn't going to move stuff around and cause issues like a flushing machine using relatively pressure on a tranny that's not running.

If you're tranny is slipping and the fluid level is fine, the damage is already done. It's too late.

 

To be specific 2003 G35 models up to serial 099999 did not have a dipstick - just a cap. I'd be happy to take a picture of the cap if you still don't believe me. Thanks for the offer on your pics but I'll stick to the 2003 FSM page AT-12. On that page it also specifies that the fluid capacity of the 5AT is 10 7/8 quarts.

Brian

 

OK...I made a mistake about a 2003 G35 dipstick.

Game on!

How are you going to get the capacity of 10 7/8 quarts out of your transmission?
This explanation has got to be good.
Please take pictures. Without pictures it didn't happen. I don't mean pictures of your filler cap.
I want to see pictures of your 11 quarts of used ATF.
And video of you getting it all out would be a bonus.

I was trying to help out. Now I am in smarta$$ mode.

If you don't want people's help who have done the job (many times) which you are about to preform, maybe you shouldn't post on an open forum.

 

Time to grow up.

10 7/8 qts come directly from the G35 FSM. People typically buy more fluids than they'll need to complete job. It's science.

 

I had a fluid exchange at 39k and Will do it again at 70k, or three drain and fills.

 

I'm not going to counter attack you - just provide some facts so that bad information does not propagate on this forum.

Don't know how to convince you other than to show you the FSM procedure and the 5AT transmission capacity. You're probably forgetting that the torque converter does not get drained when you open up the pan - there's a lot of fluid in the torque converter and the only way to get it out is to pump it out.



The 5AT contains a pump that circulates transmission fluid through the cooler (which is a chamber at the bottom of the radiator). By disconnecting the return line and installing a temporary line into a catch can you can remove replace almost all of the transmission fluid. I did so in 2 quart increments after draining and replacing what was in the pan so as not to drain the transmission.

The concept is that as dirty fluid gets pumped out, new (clean) fluid is added. Since some mixing does occur, the amount to be replaced will exceed the total capacity.

If you still don't believe me check out this video - except I took it a step further and did a more comprehensive fluid change.

http://www.infinitihelp.com/diy/gsed...on_service.htm


Brian