600 TSB results...

[geusterman]

were 1. 3 mpg increase. I was testing some injectors and did a mileage run getting 16. 5 with fuel to the threads (vented tank). Had the white smoke TSB done on my 04. 5 with 10K miles and made another run finishing out at 17. 8 mpg. It was an 86 mile round trip for the one reason only between 65 and 70 mpg. Same pump, same side of pump and same spot. There you have it! George

 

[Gary - K7GLD]

Well, yeah, maybe - but which way was the winnd blowing, what was barometric pressure, and what color shirt wuz ya wearing...



All these side issues can cloud the result...

 

[geusterman]

Baro same. . no wind and different shirt George