Manual Transmission And Differential fluid change

[Sentientbydesign]

I was at Super Autobac's on Sunday and Picked up 5 qts of Amsoil 75w-90.

My buddy at Infiniti said I could go with Motul 300, but I wanted to try Amsoil and it was cheaper.

I went to look at the FSM and now I'm concerned. It says to use Nissan HQ Multi 75-85 or API GL-4 for the Transmission and API GL-5 for the Differential.

Anybody have any insight on this?

[joe603]

I wouldn't mess with it until at least 60k...

I had the dealer do my 6MT fluid and now it doesn't go into gear as smooth...

[Sentientbydesign]

60K is about a week or two away, Joe. I live in CA. We drive A LOT lol.

[joe603]

HS! i guess so!

[Jacko3]

Joe drive it for another month, and then ask them to change the gear oil again. Ask them if they use geniune Nissan Manual transmission oil.

[joe603]

I hate driving an hour to the Union City dealer...I only go when I have a few things they can work on, or when I want to test drive cars

[Jacko3]

Nate:

Remember when I did my manual trans fluid and diff fluids in March of this year (2008)? I used synthetic fluid and i didn't like the way it felt in the gear box or how the car shifted. I felt like I was touching all the heavy metals in the transmission. So, I went back and told them to change all my fluids back to "Nissan HQ Multi 75-85 or API GL-4 for the Transmission and API GL-5 for the Differential".

I beleive Nissan's fluid is best suited for our cars---the formulation maybe designed specifically for our cars---the shifting is perfect. And by the way, when my clutch was replaced in August 2008, they replaced my fluid one more time. So, I have had two transmission fluid replacement already, and the shifting is as smooth as butter.

[Tampa G35 Sedan 6MT]

I would be careful! No that you are out of warranty!

[SteveTheTech]

I really like the Nissan stuff it's a little more but IMO it has the best shift results. Specs of the fluids aside, the fluid was designed for that trans.

[Sentientbydesign]

I would be careful! No that you are out of warranty!

I thought powertrain was 70k. Am I wrong?

I really like the Nissan stuff it's a little more but IMO it has the best shift results. Specs of the fluids aside, the fluid was designed for that trans.

I'm probably going to take the Amsoil back. I think I got the wrong stuff. I know for sure it won't work in the trans. I was hoping to get some lube that improved fuel economy and reduced wear.

[Tampa G35 Sedan 6MT]

I think Powertrain is 5 years 70k but bumper to bumper is 4 years 60k miles!

DJ

[Tampa G35 Sedan 6MT]

But you never know.. .Those damn Stealerships

[Jacko3]

Steve:

Yep! I agree. Just like you, I am extremely sensitive to small changes or driving behavior or feel of my car. Even small changes in temperature are easily sensed without an instrument. I really should be a test driver for an auto company. I would do such job even without pay on a part-time basis. Thats one of my dreams.