So i just realized that whatever code has popped up in my wife's 08 RDX, she has just gotten an oil change and had it reset. Is there any way to recover older codes, and if not what should we have had done up to this point on an RDX with 58k miles? To make matters worse, we bought it used so not sure what was done for the first 30k miles or so. I'm thinking at this point just to be safe i should do:
new air filter
new cabin filter
rear diff fluid changed
tranny fluid changed
brake fluid change

missing anything?

 

only change the engine air filter if its dirty.

other than that, your list looks great

 

Coolant change