USMC5811 wrote:
My experience with a transmission with no dip stick is that it needs to be level and running while you remove the fill plug to check it. For me that translates into being on a lift. Fortunately it doesn't need to be done very often, mostly at service times.
The only transmissions I've ever seen a recommendation that the engine be running when checking, and please note, that is the engine, not the transmission, have been automatics.
Manual transmissions are done with the engine off and the vehicle level, and the oil should be just level with the fill hole, if it dribbles out you're good, if it doesn't and you can reach it with a pinky finger through the hole you're good.