Thanks for the confirmation on the numbers. I thought I read the interval for changing the cabin air filter was 9,300 miles. As for the engine air filter, though the mileage is low at its 2 year anniversary, I figured the filters are cheap so why not?
The coolant issue bothered me. I did a brief inspection (i.e. oil level, tire pressure, coolant level, etc...) before I drove down from the SF bay area to LA last weekend. The engine was cold, and the coolant level was low. I topped it off with about a cup of distilled water till it reached the "L" line. Did I do wrong? Should I be concerned or is this amount of evaporation normal after two years?