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  #1  
Old 12-03-2010, 08:51 PM
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stodg73 stodg73 is offline
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Default How to get better MPG

When trying to get better miles per gallon (MPG), you should try and keep the Boost below 6 psi and the EGT below 600*, by using these numbers as a guideline for increasing mpg, they are easier to remember than 2 different numbers, plus most boost gauges are calibrated with even numbers. The reasons behind this, is because the higher the boost number, the higher the fuel consumption.

The easiest things to do to keep higher MPG are:
1. Air up your tires to the recommended pressure.
2. Keep the fluids changed, i.e. oil, ATF, etc.
3. Keep the Air Filter clean.
4. Go easy on the Throttle, no jack rabbit starts, quick stops, etc.
5. Plan for Red Lights, don't run up to one and then hit the brakes, instead if you see the light turn red, get off the throttle and roll up to the light and slow gradually. It is easier to start at 5 mph rather than at 0 mph, this uses less fuel to get back up to speed.
6. When coming up to a stop sign and there are several vehicles there, get off the throttle and roll up to the sign, by this I mean let several of the vehicles leave and you will spend less time idling. Idling = 0 mpg.
7. Try and plan your route to make more right hand turns than left turns, also try to hit as many shops in one location to reduce drive time. This also reduces idling time.
8. If going to eat at a fast food place while traveling and you are wanting to go through the drive thru, if there are more than 3 vehicles waiting, go inside and order. You will spend less time idling.
9. If lights are timed in your area at 40 mph, and the speed limit is 45 mph, get up to speed and then go 40 mph to hit as many of the lights as possible without slowing down. This reduces the time that you are speeding up or idling, which means using more fuel.
10. Have the alignment checked yearly. To keep tire wear and scuffing to a minimum. Also, check the steering components for wear: Loose Steering Check

The biggest change to getting better mpg is retraining your right foot to be a mpg king. Using the foot to make the most out of the diesel fuel used.

Now, for those of you that have an overhead mpg calculator, you can set it on ECO mode and see how your truck is doing. Then figure out what you can do to get better mileage. I do this by trying to keep mine above 20mpg. I know that the overhead is called the Lie-O-Meter, but it can help you get better mileage, and retrain your right foot.


More Information to be added.
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O.O., 01.5, Dodge, 2500, High Output (H.O.) Cummins Turbo Diesel (245/505), Quad Cab Long Bed (QCLB), 4x4, Sport, Original Bosch VP 44 Injection Pump, 6 Speed/NV5600 Transmission, 3.55 Gears, 105k, currently stock engine, Fram Air Filter, 285/75R16s, Glow Shift Gauges: Fuel Pressure (FP), Boost, Exhaust Gas Temperature (EGT), Oil Temperature, SMARTY@1, Airtex lift pump 19 psi @ idle, 14 psi @ WOT, Propane Injection, 2 Stroke Oil, Intake Air Temperature (IAT) Fooler = Better MPG, Bed Lined, Chrome Nerf Bars, more to come!!

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Last edited by stodg73; 09-20-2012 at 04:34 PM.
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Old 12-03-2010, 09:00 PM
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Excellent ideas! I have gotten as high as 23.4 MPG (hand calc) out of my truck by going easy on it.
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Old 12-14-2010, 09:21 AM
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stodg73 stodg73 is offline
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Default

Thanks Tom. I will be adding more to this as I think of stuff.
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O.O., 01.5, Dodge, 2500, High Output (H.O.) Cummins Turbo Diesel (245/505), Quad Cab Long Bed (QCLB), 4x4, Sport, Original Bosch VP 44 Injection Pump, 6 Speed/NV5600 Transmission, 3.55 Gears, 105k, currently stock engine, Fram Air Filter, 285/75R16s, Glow Shift Gauges: Fuel Pressure (FP), Boost, Exhaust Gas Temperature (EGT), Oil Temperature, SMARTY@1, Airtex lift pump 19 psi @ idle, 14 psi @ WOT, Propane Injection, 2 Stroke Oil, Intake Air Temperature (IAT) Fooler = Better MPG, Bed Lined, Chrome Nerf Bars, more to come!!

Toys:
'79 CJ5, 258ci, 3" lift, 33x12.50x15, Stock Engine and 3 Speed Tranny
'05 Suzuki, GSX1300R, Hayabusa, All Stock, #3('00 blown engine, '00 stolen, & '05)
The complete live & learn and pass it on by H. Jackson Brown, Jr.
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Old 05-12-2012, 08:39 AM
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Mopar1973Man Mopar1973Man is offline
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Quote:
1. Air up your tires to the recommended pressure.
You can figure out tire pressures from scale weight.

Let's say for example my front axle weighs in at 4,040# so divide that in half you come up with 2,020# per tire on the front axle. So if you have load range E tires (check you tires weight capacity) you should get 3,042# per tire. So now divide 2,020# in to 3,042# gives you 0.66 or 66% percent of the tire load capacity. So now take your maximum air pressure 80 PSI (check the tire for max air press.) and multply by 0.66 so typically this would be 53 PSI.

(((Axle Weight / 2) / Max Tire Weight) x Max Tire Press) = Tire Pressure PSI

4,040 / 2 = 2,020 / 3,042 = 0.66 x 80 = 53 PSI

__________________________________________________ __________________________________________________ ____

ScanGauge II or Ultra Gauge is a very handy tool and gives you the ability to get the most out of your vehicle. Once its calibrated you can drive by number basically so if you want 20 MPG you know you got to keep the MPG display above 20 MPG as much as possible using the tips Stodg posted above.


__________________________________________________ __________________________________________________ ____

Then look at your selection of tires. This usually hang most people. Rotational mass and rolling resistance.

Rolling resistance is based on the amount of tire face that is in contact with the road and what type of tread design you have. The more aggressive tread designs produce higher rolling resistance also wider tires do too.

Rotational mass is the amount of weight you must get turn from a dead stop so the more weight you have on a axle the more energy it takes to get those tire twisting again in stop and go traffic. Roughly for every 4 pounds of tire mass you ditch your require 1 less HP to get/keep the tires rolling.
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2002 Dodge Ram 2500, 5.9L Cummins Turbo Diesel, 5 Speed NV4500 transmission, 4x4, 3.55 Gears, AirDog 150 fuel pump with 1/2" Big Line Kit, Stock Bosch VP44 Injection Pump, Bosch RV275 Injectors +40HP, Edge Comp Performance Box, BHAF (Big Honkin' Air Filter), Stock Holset HX35W Turbo, Straight 3" Pipe Exhaust, Crankcase Vent Mod, High Idle Mod, MPG / IAT fooler Mod, ScanGauge II, 25% Tinted Windows, DiPricol Gauges (Fuel pressure, Boost, Pyrometer), 235/85 R16 tires mounted on 16x7 Aluminum mags (weighing 62#), Custom Fog Lights, Custom Backup lights, Silverstar Headlights, 23-24 MPG

1996 Dodge Ram 1500, 5.9L Magnum V8 Gasoline Engine, 46RE Automatic Transmission, 4WD with CAD axle with 3.55 Gears, Mopar Performance PCM, Gutted Kitty, ScanGauge II, 35% Tinted Windows, 16-17 MPG


Last edited by Mopar1973Man; 05-12-2012 at 08:48 AM.
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