I just picked up a 94 Integra Automatic and couldn't find a drain nut on the tranny housing. Is this trans a conventional drain and fill like most? If not how does one change the ATF?

 

The drain bolt (if I remember correctly) will be a bolt with a 3/8" fitting. I mean use your square head on a 3/8" ratchet and it should go right in. That's the one you want. Secondly, as for a flush procedure, utilize on Acura ATF. Do not use dexron/mercon or anything else. I believe the procedure goes something like this....drain and fill the trans with new fluid. Then you are supposed run through the gears. I've seen this done on a lift, or street driven. Check your manual on when to check the fluid fill, some are done with the car running and some done while the car is off. Any way, you run it through the gears. I've even seen some people manually shifting the automatic so that it loads the clutch packs and cleans some of the debris off. If your doing about 45 mph, manually down shift to second gear and load the transmission (provided you don't have any issues already). You are supposed to do this complete drain, fill and run procedure about 3-4 times. A typical drain and fill will run about 2-3 qts., so plan on having about 12 qts. of fluid. At $4 a pop, this is an expensive deal just to flush the trans. It seems as if you're trying to keep your car in good shape. I would recommend purchasing the Helm Factory Service Manual for about $80. It will tell you everything, including the stuff you don't want to know. If you just servicing the car and selling it, then don't worry about it, but it is the Acura Bible for your car. Oh, by the way, I hate automatics, both from a driver's standpoint and a service standpoint. When you're done servicing yours and jumping through these hoops you'll know why. If you can, go for the manual on your next car, but that's just me.