Hello there,
Searching for Pictures or instructions of how to change the GEAR oil on TwinAir 0,9 in my Fiat 500 Twinair.
There are some plugs in the bottom of the transmission, but its hard to tell which one is the drain plug.
Answers With Pictures and/or descriptions are very much appreciated!!
Best Regards
TwinAir

There’s really no need to change the oil in your box unless you’ve had a leak or it’s become contaminated somehow.

The drain plug is the small one facing the rear on the bottom of the gearbox..

The fill plug is on the front halfway up

The gearbox takes about 1.5 litres of 75w85 GL-4+