Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - 11 mpg to 15 mpg is it possible mostly on driving style and small mods?

Milwaukee · 10-20-2009, 04:33 PM

First

Get vacuum gauge. and turn off overdrive until you go over 50 mph if you have 3.55 gear.

I have 96 E350 passenger van it weight 9,000 pounds. 5.8L with E40D.

gear ratio was 3.55

Most time I get 13 mpg in city and 17 mpg on highway load with 15 people.

When I didn't have vacuum gauge I got 9 mpg in city and 12 mpg on highway.

Keep vacuum gauge pressure about 10 or high is best.

Make sure 4wd hub lock out are disengage correct. Most time they get old and stuck which cause 4wd work all times until you notice mpg terrible.

You wouldn't see 12 mpg or high due you fill gas tank per month which gas can disappear. Example you have 5 gallons of gas but 1 month it 3-4 gallons due leak fuel cap or leaky tank.

10-20-2009, 04:33 PM	#21 (permalink)
Milwaukee EcoModding Apprentice Join Date: May 2009 Location: Michigan Posts: 111 Thanks: 8 Thanked 5 Times in 5 Posts	First Get vacuum gauge. and turn off overdrive until you go over 50 mph if you have 3.55 gear. I have 96 E350 passenger van it weight 9,000 pounds. 5.8L with E40D. gear ratio was 3.55 Most time I get 13 mpg in city and 17 mpg on highway load with 15 people. When I didn't have vacuum gauge I got 9 mpg in city and 12 mpg on highway. Keep vacuum gauge pressure about 10 or high is best. Make sure 4wd hub lock out are disengage correct. Most time they get old and stuck which cause 4wd work all times until you notice mpg terrible. You wouldn't see 12 mpg or high due you fill gas tank per month which gas can disappear. Example you have 5 gallons of gas but 1 month it 3-4 gallons due leak fuel cap or leaky tank.