How do you change the transmission fluid on a 1994 Nissan Altima with manual transmission?
The above is for an automatic transmission. The manual transmission has a fill plug on the front about two-thirds down, and a drain plug on the bottom. Just remove drain plug, drain out old gear lube, replace drain plug, and fill with 80W90 gear oil until it reaches the fill plug(usually about 2 1/2 qts.