i have 04 G35 c 6spd, and its about 30,000 miles,
since couple days ago, i start to smell some clutch burns but i didnt even do anything.
i went to the local shop, they told me maybe the manual trans fluid and he mentions something about rear gear box...

can anyone help?
wut about manual trans fuid, gearbox and how about rear differencial oil??

thx for all the comments.

 

by the way, when i used 1st or 2nd gear and i didnt step on either gar or clutch, i heard something weird, anyone has this problems?

 

and wut manual trans fluid and other oil should i use? should i use the OEM or go with aftermarket?
thx