Highest MPG Ever.
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Highest MPG Ever.
I want to know whats the highest consistent numbers you guys get with your 1st gens high 20's? maybe even low 30's? I am interested because I have a long commute and I have to travel rough roads and its wearing my commuter car out so I am considering using my truck as my daily commuter I don't want to but I may have to so your MPG numbers would be apprciated thanks!
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It's a 97 but the ideas are the same http://www.dieselpowermag.com/tech/g...s/viewall.html
Lift will cost about 1 mpg for each 2", brush guards and winch bumpers will cost 1 mpg, expect 1 - 2 mpg less in winter. Fuel: summer fuel gets 3% better mileage than winter. Winter air can drop mileage by 8-15%. Warming up the truck in the mornings 1/2 a gallon an hour at 650 rpm, do that for 10-15 minutes, 5 days a week.... B20 can lower your mileage by 1%.
Keep you in the Cummins "Sweet Spot" 1300-1500 RPM Cummins Turbo Diesel News and http://cumminsengines.com/assets/pdf...whitepaper.pdf
Bigger/wider tires will kill mileage, taller and skinny are better. Watch your PSI.
Lift will cost about 1 mpg for each 2", brush guards and winch bumpers will cost 1 mpg, expect 1 - 2 mpg less in winter. Fuel: summer fuel gets 3% better mileage than winter. Winter air can drop mileage by 8-15%. Warming up the truck in the mornings 1/2 a gallon an hour at 650 rpm, do that for 10-15 minutes, 5 days a week.... B20 can lower your mileage by 1%.
Keep you in the Cummins "Sweet Spot" 1300-1500 RPM Cummins Turbo Diesel News and http://cumminsengines.com/assets/pdf...whitepaper.pdf
Bigger/wider tires will kill mileage, taller and skinny are better. Watch your PSI.
#5
I consistently get 24 on the highway when I go to east Texas. It's about 140 miles one way at 70 mph. That was with the 33s. Haven't checked the 37s but they definitely dropped my rpms. Added a Denny T at the same time so I'm sure it really dropped.
#6
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It's a 97 but the ideas are the same http://www.dieselpowermag.com/tech/g...s/viewall.html
Lift will cost about 1 mpg for each 2", brush guards and winch bumpers will cost 1 mpg, expect 1 - 2 mpg less in winter. Fuel: summer fuel gets 3% better mileage than winter. Winter air can drop mileage by 8-15%. Warming up the truck in the mornings 1/2 a gallon an hour at 650 rpm, do that for 10-15 minutes, 5 days a week.... B20 can lower your mileage by 1%.
Keep you in the Cummins "Sweet Spot" 1300-1500 RPM Cummins Turbo Diesel News and http://cumminsengines.com/assets/pdf...whitepaper.pdf
Bigger/wider tires will kill mileage, taller and skinny are better. Watch your PSI.
Lift will cost about 1 mpg for each 2", brush guards and winch bumpers will cost 1 mpg, expect 1 - 2 mpg less in winter. Fuel: summer fuel gets 3% better mileage than winter. Winter air can drop mileage by 8-15%. Warming up the truck in the mornings 1/2 a gallon an hour at 650 rpm, do that for 10-15 minutes, 5 days a week.... B20 can lower your mileage by 1%.
Keep you in the Cummins "Sweet Spot" 1300-1500 RPM Cummins Turbo Diesel News and http://cumminsengines.com/assets/pdf...whitepaper.pdf
Bigger/wider tires will kill mileage, taller and skinny are better. Watch your PSI.
#7
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I want to know whats the highest consistent numbers you guys get with your 1st gens high 20's? maybe even low 30's? I am interested because I have a long commute and I have to travel rough roads and its wearing my commuter car out so I am considering using my truck as my daily commuter I don't want to but I may have to so your MPG numbers would be apprciated thanks!
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#8
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Hey Mike, ... how do you define "sweet spot"? The whitepaper link didn't work for me so I need to ask. I pull my 25' 5th wheel camper all summer, and if I get below about 1700 rpm I've got no power, just noise and smoke. My fondest wish for my truck is to get more gears to I could keep the motor in the 1800-2200 range. Meanwhile with my OEM 5spd I get about 23 mpg(Imp) empty and 15 pulling. I'm sure I'd do better with more gears since now I need to roar 2nd and 3rd gears over 2500 rpm to catch the next gear above 1500 rpm. (I obviously don't speed-shift, au contraire I double-declutch on every shift up or down).
#10
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It's a 97 but the ideas are the same http://www.dieselpowermag.com/tech/g...s/viewall.html
Lift will cost about 1 mpg for each 2", brush guards and winch bumpers will cost 1 mpg, expect 1 - 2 mpg less in winter. Fuel: summer fuel gets 3% better mileage than winter. Winter air can drop mileage by 8-15%. Warming up the truck in the mornings 1/2 a gallon an hour at 650 rpm, do that for 10-15 minutes, 5 days a week.... B20 can lower your mileage by 1%.
Keep you in the Cummins "Sweet Spot" 1300-1500 RPM Cummins Turbo Diesel News and http://cumminsengines.com/assets/pdf...whitepaper.pdf
Bigger/wider tires will kill mileage, taller and skinny are better. Watch your PSI.
Lift will cost about 1 mpg for each 2", brush guards and winch bumpers will cost 1 mpg, expect 1 - 2 mpg less in winter. Fuel: summer fuel gets 3% better mileage than winter. Winter air can drop mileage by 8-15%. Warming up the truck in the mornings 1/2 a gallon an hour at 650 rpm, do that for 10-15 minutes, 5 days a week.... B20 can lower your mileage by 1%.
Keep you in the Cummins "Sweet Spot" 1300-1500 RPM Cummins Turbo Diesel News and http://cumminsengines.com/assets/pdf...whitepaper.pdf
Bigger/wider tires will kill mileage, taller and skinny are better. Watch your PSI.
Posted via Velocity LG ALLY
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Okay so roughly 20-25 depending on tires time of year heavy foot and tranny and gearing and anything that drags and 25 with a trailer thats pretty good!
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Keep you in the Cummins "Sweet Spot" 1300-1500 RPM Cummins Turbo Diesel News and http://cumminsengines.com/assets/pdf...whitepaper.pdf
Bigger/wider tires will kill mileage, taller and skinny are better. Watch your PSI.
And as much as I like the mpg study dieselpowermag did on that truck, I don't take it as a realistic test at all. It was never stated how many miles this test was done at. A 150-200 mile test is not realistic at all. It was not stated how the truck was filled either (until the pump clicks, or until fluid is to the edge of the filler neck?). This was not written like a true, scientific study to eliminate these questions of variables. I've seen other fuel economy "study's" at DPM that was documented VERY well. I can not remember the writer, or the truck used, but it was well documented. They mentioned traffic, average speed, weather, and they did all tests over at LEAST 1 FULL tank of fuel if not more.
Perhaps this test was done for a full tank of fuel (which would be almost 900 miles) and it would be a plausible study. But to leave out the information when it's clear that the magazine recognizes these variables in another article leads me to believe this was a short run test for an hour or two.