[99LeCouch]

The block doesn't improve cooling any at a standstill. Once I'm moving it really takes over.

The Techron goes into the gas. And you don't have to change the oil after you're done. It sends all the gunk down the tailpipe. What's left over can affect your oil, but only if you don't change the oil for 20,000 miles.

I also Auto-RX'ed this engine, which cleaned it out nicely. I don't think blowby is a problem with the 66k miles my car has on it. 35k of that I've put on the car in the past year and a half. And my grandfather had the car before me, and he drove like I do now. AKA slowly and gently.