What kind of transmission fluid can you use for a 1990 Honda Civic 1.5 l MANUAL transmission?
The dealer says to use only 10W30 motor oil I'm surprised a dealer would say that; even though it's a good answer. Honda MTL, which is their Manual Transmission Lubricant, is sold at Honda dealers and is recommended by the Honda literature. I recommend Mobil 1, same weight as you've got in the engine. Usually 5W30 or 10W30.
Go to your Honda dealership and get Honda Manual Transmission fluid or just buy some 10W40 and put that in there it will work either way. do not use synthetic motor oil! Go to your Honda dealership and get Honda Manual Transmission fluid or just buy some 10W40 and put that in there it will work either way. do not use synthetic motor oil!
If it is an auto it is most likely your torque converter changing the fluid will help slightly but not a whole lot. If it is manual then it could be your clutch or your trans fluid trying changing fluid and replace with Honda MTF if this does not help have your clutch checked out to see if it is almost worn out You can also adjust the clutch on a manual civic to get…
Use only genuine Honda ATF-Z1 transmission fluid. Do not use any other fluid no matter what anyone tells you is a substitute. There is no substitute for this fluid and the use of any other fluid will cause your Honda transmission to not shift properly. If you have a manual transmission, contact a Honda dealer for the correct lube or read your owners manual.
Undo the fill plug with whatever sized socket/wrench needed then undo the drain plug with a 3/8" ratchet and drain the old fluid into a container. Retighten the drain plug and refill the transmission with Honda Manual Transmission Fluid or 10w30 motor oil. You will need a way to squirt the oil through the fill hole. Retighten the fill hole and you are set.