[dremd]

I figured I'd add that I ran copper tubing wrapped around the evaporator feed line from thermal expansion valve as a cooler. I could usually cool my butt off enough on Decel which of course cut my coasting distance, but I felt was worth the trade off.
I always wanted to have both a resovoir and the factory A/C heat pickup on a separate loop with a thermostat for extended No a/c run time, but the Golf got totaled before that happened.

I also no longer switch off my ignition switch in traffic after a close friend nearly died after stopping for a fire truck and a loaded 18 wheeler plow in to the back of the car behind him with the cruise still set at 81 mph. 4 others died all in front of him. The wheel bag that deployed was actually out of my totaled golf.
It's been a very noticeable hit in MPG for me, enough so that I'm considering picking up a Leaf as a second (local only) car to save the TDI for heavy (I don't believe the leaf likes anything over 1,50lbs behind it) towing and highway towing.