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Well I posted my first tank this morning, a little earlier than planned. 32.434mpg for a Buick with no ScanGauge II, yet, I'm happy with that number. 8.337 gallons for 270.4 miles.

Once I get my SGII I think I can make 34-36mpg. On a side note my son's using my car while his is in the shop, that's why I added the tank before the 300 mile mark. I'm driving my wife's '06 Grand Prix, I filled it this morning :eek: reset the DIC and pulled 34.7mpg (average speed 46 mph) on my commute to the office this morning :D , this has potential.

Got to get a SGII in the Buick.

EDIT: Ended the day with the Grand Prix at 33.7mpg, not bad for a 3.8l V6.

Way to go, Mac-Mile!! Those are great numbers!!

Pax,

Fr. John

That's incredible! When you get the scan gauge you will see at least a 10% increase.
I wish I could figure out how to paste my spread sheet that shows when I got the scan gauge. A picture is worth a thousand words.

Welcome to the forum and I'm looking forward to reading about your future progress.

Keep it up & enjoy.