I know you all know I use my ScanGauge II for getting the most MPG's from my vehicles as in the other thread I kept going over here. So here is now the last few trips to McCall, ID now in my 2002 Dodge Cummins... http://g.co/maps/ezxhe

I've tried going 70 (since that is the speed limit in Washington and it doesn't seem to make any difference. 75mph is 2000 on the tack and it runs good at the speed.

Speed limit here locally is 65 MPH but Idaho doesn't have a minimum speed limit so I set my cruise for 55 MPH and yield to traffic behind me. What do I have to hurry for? Like I tell anyone if you want me to drive fast pay for my fuel I'll drive as fast as you want me too. But since I'm paying for the fuel I'll drive as slow as I want too. Yes I've actually dropped cruise as low as 50 MPH in 65 MPH because there is no one around. I'll kick back, turn up the tunes and enjoy the ride... Once again what am I in a hurry for?

I admit driving 50 mph would give me a lot better milage but traveling 800 miles at 50 mph would take a long long time to get there and at my age time is valueable.

I admit driving 50 mph would give me a lot better milage but traveling 800 miles at 50 mph would take a long long time to get there and at my age time is valueable.

Naw... 800 Miles / 50 MPH = 16 Hours 800 Miles / 60 MPH = 13.3 Hours 800 Miles / 70 MPH = 11 Hours So there is a few extra hours...

Naw... 800 Miles / 50 MPH = 16 Hours 800 Miles / 60 MPH = 13.3 Hours 800 Miles / 70 MPH = 11 Hours So there is a few extra hours...

Mike by your calcs. Miller time comes 5 hours earlier running 70. Where as running 50 it came and went, till the following day.

I live on San Juan Island and I'm paying $4.89 gal. as of last week. And it goes up because of tourist season. OH JOY. lol. I do tend to hover around 15-16 mpg, although it is a 55 sq. mile island with a max speed of 45 mph. I would like to get rid of the 4.10 gearing. Can't justify the expense.

$3.619 here this morning.

I made a trip to orlando and back to the diesel drags last weekend and with just the 100 miles or so of highway my truck got 17.2 mpg and the rest of the tank was around town like always. I think I could probably get 19 or better out on a tank across the country.

I win! $5.69 gallon at Lee Vining CA last week. Oh! we were bragging about low price?

114.9 a litre in my area..Multiply that by 3.78...I'm at about 19-21 in my 98 which is modded, and 22-24 in my 94 which is bone stock

Can't get over 20 drives me nuts no I'm not complaining its just a ceiling I want to beat 11.5 towing 15-16 mixed 13 heavy stop start Stop start kills these autos

In Riggins, ID its $4.609 diesel and $3.979 for gasoline. Prices have jumped here since the last holiday.

$4.12 or so around here, but I have been getting 25.4 mpgs out of the last two tanks at 65 mph empty!

Reg GAS is hovering just below $4... diesels closer in price than usual, only +.10 or .12 I'd be dancing in the street if I got 25mpg from my truck. I might even get rid of my daily driver. The better mileage is making 12 valves worth keeping up!

Reg GAS is hovering just below $4... diesels closer in price than usual, only +.10 or .12 I'd be dancing in the street if I got 25mpg from my truck. I might even get rid of my daily driver. The better mileage is making 12 valves worth keeping up!

Ah, but the propane is the key! Normally I would only get about 18 to 20 mpgs at 65mph...... I also get about 14.5 mpg towing my fiver at 65 mph.

I had a busy weekend, working the '97 dually.. Filled up 3 times in 4 days..Hand-calculated (using GPS total mileage)Th: $3.899 18.5g 246mi = 13.3mpgSa: $3.899 18.8g 234mi = 12.4mpgSu: $3.899 21.2g 248mi = 11.7mpgThis 12V gets no better than my crappy MPGs I got in my '01 6 speed..

Been a little busy this year. Haven't put over 1K miles on the 02 Dodge this year since I bought and started driving commercially a 2002 Ford E350 7.3 PSD 3.55. This year I have driven 112,325 miles using 5,870.389 Gallons of fuel for an average of 19.134 MPG. Average cost of fuel was 3.902 per gallon. I am by nature a conservative driver, most of the time with the cruise set at 60-62. These totals include one trip I pulled a tall heavy trailer from AR through TX to AZ and then back. Averaged 12 MPG for about 4K miles on that trip. 3.55 gear SUCKS pulling with a PSD. Totally different torque range. If I could figure out how to install the cummins in the van then I would have something...LOL

In 3 days of working on the SAR's group I've travelled 480 some odd miles and so far holding about 21 MPG and that's with driving 60 MPH on the highway to and from the SAR's post plus climbing mountain and driving mountain roads at 25-35 MPH.

Got 17.9 on my last fill-up with mixed city and hwy. Its about $4.00 a gallon around here.

Got 17.9 on my last fill-up with mixed city and hwy. Its about $4.00 a gallon around here.

$4.299 in Grangeville, ID $4.579 in Whitebird, ID $4.479 in Riggins, ID Another $50 bucks to drive to post tonight...