for some 3/8" seems kind of loose in there. i ended up twisting it a bit so what else can i use or how do i get that thing to loosen up??

this is automatic transmission.

 

Are you sure you had it all the way in there? Maybe hammer on the extension a bit and then just torque on it, it should come loose.

 

i tried impact wrench and it mangled the tip.. and it was all the way in.. 3/8" seems a bit smaller than the hole, as ideally you want your socket to be in tight and not move.. what would be a metric version of 3/8" and where to get it?

 

maybe warm up the trans a little bit, but as stated in the prior post; make sure the square hole is cleaned out so your breaker bar seats all the way in, then when you put the cheater pipe on the braker bar you can apply maximum torque.

 

been there...weld an old extension to it, then break it loose by hand with one hell of a cheater. then buy a new drain plug.

 

$10 Breaker Bar from Sears and PB Blaster should loosen it up. Also, new drain plug from Majestic Honda is probably in order.

Once you get it off, clean off the shavings that are stuck to the plug(it's magnetic).