ok so i get it, high rpm=bad for mpg, but low rpm=good mpg.
how about this question, say your rolling at 45 mph in top gear, but then have to speed up, would it be better to down shift or just give in more gas in top gear?

and another thing......i have just noticed the cars local retard owns.......its a 89' porsche 959($200,000), 04' Koenigsegg CCR($350,000) and a 07' Rolls Royce Silver Ghost(not even made yet!)HAHAHAHA, DUDE u have an awesome taste in cars!!!!!!!!!111111