manual transmission
3 Answers
I completely drained my transmission and put in Mobil 1 full synthetic and it shifts a lot better I say do the maintenance of the transmission complete change of the old fluid to new fluid by a process of using the transmission oil cooler you feed new fluid in and pump old fluid out into different buckets as a process of completely getting the old fluid out and installing new fluid with the engine running you don't flush it you just gravity feed it into the system it can be done and it gets the old fluid completely and you have brand new synthetic fluid in there that's what I tried see how it works afterwards.