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Thank you for all the info Do you know someone like you here in Dallas Texas?
John just completed the fuel injection treatment on my newly acquired 2004 Ford Expedition with about 224K on the clock. It completely decarbonized the throttle body and the visual results of that are astonishing. The 5.4 liter engine idles smoother and quieter.
The test-drive before and after show a marked improvement in performance and fuel efficiency. I used to get maybe 300+ miles out of tank of gas prior to FI service. The onboard computer now calculates about 420 miles+/- per tank now.
While I’ve tried other similar products over the years in my other cars, the BG-line that John uses are superior and I recommend you check it out at his shop.
Thanks again John!