stuck_in_the90s

where do i put gear oil or motor oil in to my tranny the d15b7 tranny??

98civdx

pull your speed sensor out, and you can do it throw here,
or if you pull the pass side wheel there is a fill plug.

Jackal6042

There is actually a filler bolt on the side of the trans. Because there is no dipstick the way you get the proper level is to park the car on level ground. Remove the filler bolt and fill with gear oil until it runs out of the filler bolt hole. You could fill it through the speed sensor but you wont have the proper fluid level.

Vindicator9000

^^yes, but there are tricks to get the proper fluid level when filling through the speed sensor.

For example, look at the fluid capacity in the manual. I know a B16 transmission takes like 1.92 quarts. When filling from empty, I always throw 2 quarts in and call it good. The extra .08 won't hurt anything.

Or, remove the fill plug. Then fill through the speed sensor until it starts running out the fill plug. When it does, you know you're full.

IMO anything's better than trying to pour liquid through a horizontal hole with almost no high-side clearance.

Anon51

just a quick lil note. don't use regular gear oil. get yourself a couple bottles of Honda Manual Trans Fluid.

macson

I always do it through the speed sensor with the fill plug off. Also, make sure you're using MTF or at least motor oil, do not use gear oil.

rick_rabies

speedsensor with 10w-30

honda.lioness

See the instructions at http://media.honda.co.uk/car/owner/m...l/pdf/13-3.pdf

You will need to get two new washers: One for the drain plug, and one for the filler plug. They are crush washers, so they are one-time use only. Also, get a funnel and then buy a few feet of tygon tubing (like 1/2-inch?) from Lowe's or Home Depot, both of whose ends fit the funnel and into the filler hole.

Use only genuine Honda Manual Transmission Fluid. The old owner's manual says to use engine oil, but this was before the engine oil industry adjusted the chemistry. Engine oil is no longer the best choice. Plus you can leave the genuine Honda MTF in longer. See a discussion of the chemistry change and economics at http://honda.lioness.googlepages.com/manualtrannyfluid

Jackal6042

Very true, .08 sure wouldn't hurt. I suggested doing it right because I could see a noob just take out the speed sensor and fill it to the top.

I've never had any issues with filling it through the filler hole, I just use a funnel with a hose on it. Works like a champ. Just like discussed by the OP in this thread...
https://honda-tech.com/forums/honda-civic-del-sol-1992-2000-1/default-%5Bfaq%5D-how-change-your-civic-manual-transmission-fluid-1687986/