I'm lost as to why SVT's and SPI's keep replying to Duratec threads...
I get a pretty steady 20-21mpg with rough 100% city driving - 2.5 miles to work, 7 stoplights. This is with Shell 87 octane.
My road trip last week, 100% hwy, I netted 30mpg with Shell/Chevron 87 and I kept the cruise at 75 most of the way.
This is with a MM CAI and FS exhaust. MPG before was fairly similar.
ST Crew #41