Originally Posted By: Phishin
Originally Posted By: supton
What about changing the filter (strainer?) too?
Yeah, can you drop the pan and change the filter on a Honda transmission? I haven't looked yet on my 2010 Accord (just got it a few months ago).
No Honda automatic transmission I know of does that. They typically just have a drain bolt and no pan per se. I remember doing an ATF and filter change on a GM Hydra-Matic transmission, and it was a royal PITA since the only way to drain the fluid was to remove the pan. And it had to be done by loosening all the pan bolts and then removing from all but one side with the remaining bolts serving somewhat as a hinge. I couldn't find a catch pan that wide, and it simply spilled over the cardboard I'd set up to soak up spills. The filter kit usually includes a replacement pan gasket (as well as a new gasket for the ATF hole), and I've seen both rubber or rubber/cork materials.
Honda automatics typically just drain through a horizontally-mounted bolt (with a fitting that takes about a 3/8" square head) on the bottom of the transmission. It pours out through this and you then top it off. There's typically no filter, but maybe a permanent screen inside that's impossible to reach. I've heard that some models have an inline filter somewhere that's supposed to last the life of the car. It's easier than an oil change (especially Honda oil changes) because there's no filter. Honda has put the oil filter in some ridiculous locations, and I could imagine if they decided to put on a spin-on transmission filter it would also be in a crazy place. Most Honda drain bolts are located such that you don't even need to lift the car to reach it. I'm not sure about the fill location though, although I believe most have a fairly wide hole where the dipstick seals off the fill hole.
While I understand that a lot of people want to do a change to supposedly get out contaminants, the system is designed to operate properly with metal shavings suspended in the fluid and doesn't really have to be "clean" to function properly. At most I recall the drain bolts have magnets. Maybe if it's been neglected, you might want to remove a lot of the stuff, but I've heard the thing that a partial change really does is replenish the depleted additives - especially the friction modifiers.