my car is manual trans when i first pulled the fill bolt on trans case 6L of the most rotten fluid came out. i pulled the drain rinsed and filled to fill bolt. 2 months later...

when you put more oil in it were you draining the transmission completely, sometimes oil can be stuck or not drained properly, as for the smell of fuel im not positive but if memory serves me correctly it can start to smell like fuel if the bearing that's behind the flywheel is leaking or on its way out and oil from the engine can get into the transmission

when i first got the car, i pulled the fill bolt on the transmission and fluid started gushing out. it smelt so horrible that i knew i had to change it all and i pulled the drain bolt on the bottom as well. i filled a gallon jug and a half from the fluid in the drain pan (which was empty when i started). i could not understand how it could have been overfilled by 4 litres. so i poured a little oil through to try and rinse the old stuff out, let it drip for quite a while, put the drain plug in, and put in just under 2L with a funnel with a hose on it into the fill bolt hole. put the fill bolt back in. so, 3 months later, i pulled the fill bolt to see if the transmission is leaking (car clunks a bit going into 1st and reverse) and a litre of fluid gushed out on me from the fill hole befoee i could get the bolt to go back in. i was really carful making sure it was level both times. the transmission is gaining some kind of fluid (smells like gas) and i cant figure out how it is getting in there. : (

If you need a new trans I happen to have one if your interested depending on where your at