This is surprising. I blocked the giant hole on my Accord this Saturday then did a 50 minute drive in heavily traffic lighted territory. I believe it was the hottest day we've had this year. I was with my g/f so the car and a/c stayed on almost all of the time, expect for some sneaky EOC. The a/c suffered some from the block, which I expected. What I didn't anticipate was to see my temp gauge just a hair/fraction lower than where it would normally be. Today a trip to Philadelphia showed the same slightly lower temp. Any thoughts on why this is?