Good day.. I have always replaced the tranny fluid on all of my vehicles in the past. I now have a 2003 G35 and see that there is a "cap" on the transmission fluid fill tube. I also read that a special Infinity temperature measuring type of dipstick is required to check the fluid level.

Why was such a simple process in the past become so over engineered in the G35??

Can some technical expert explain to me how I can replace the tranny fluid at home with out getting complicated.

Thnxs for any info. I do appreciate.

Wayne

Hey mate,

This isn't really an engineering related question.

I'd check with Infiniti section of the forum as you would get better answers there.link: zeromain?id=166

Also, Azhitman just grabbed one. Check with him too.

You need to use a special fluid matic j. The is no special dipstick. Just check it while its running.

Infiniti Tech 4 years

The reason for special ATF is the 5AT use of a new dual light weight lock up clutch for TC............vs older 4AT use of single clutch............using conventional Dexron IIIg will increase lockup shock and wear.

The newer tranny is much lighter weight and uses more aluminum parts, thus everything is more finely tuned and sensitive.........vs the old heavy duty RWD 4AT.

When you study the ATF aging charts from JATCO [tranny manufacturer] you see that under normal light duty [non aggressive driver] the ATF still borders on acceptable at 100k..............30k changes would be good to get 200k out of unit.

Folks, thnxs for the good information. We have a Nissan Quest 1993 that has 385,000 klm's (230,000 miles) on it. The entire drive train is original (except for regular maintainance items and two bad exhaust manifold bolts) and works fine today.

We used the Quest to tow a small camping trailer. Wondering if the new lightweight transmission in the G35 will stand up as well as the Quest tranny?? We tow the lightweight trailer with the G.

Thxs again for you expert views.
Modified by Road Ruler at 8:42 AM 11/30/2005

The main advantage is the newer light weight tranny was speced to handle the torque of the NEW 4.5 V8. However that is MANAGED TORQUE via the drive by wire system.

Since the tranny only has 3.5 years [mid 2002] of field experience?

Thnxs Q45. Are you saying that the G35 auto tranny is the same tranny that is used in the newer Q's, M's and RX 3.5 and the RX 4.5 V8 version???

I am very interested in understanding the capabilities of the G35 tranny especially since we are towing with it.

vtfrankenstein wrote:You need to use a special fluid matic j. The is no special dipstick. Just check it while its running.

Infiniti Tech 4 years

How do you check the level when there is no dipstick?