![]() We completed a 1100 mile round weekend trip and as I stopped for gas, I calculated mileage as I had never done this before. Quote from: lexadmn on April 02, 2017, 08:11 PM Subtract the mileage it was capable of.Īnyone see differently? How many see a difference depending on WHO's driving? Lol!!! then the fuel mix running thru that cylinder is doing nothing but creating an added load. and a good tune-up, can significantly affect mileage. ![]() diesel has a lot more, and you'll generally see a greater mpg. that's apples n' oranges!!!! The available energy in a gallon of each is significantly different, but it still takes the same energy to move a given load. ![]() and you might be surprised to see the same mileage!!!Īnd diesel vs. Tow the same with your 20hp garden tractor for 7mi. Drive at 7mph for an hour, and most will use about a gallon of fuel (unless your AC is on for that hour. but mileage at a set given speed will still be the same as an OEM stock model. A 700hp engine will require less pedal effort and can attain a higher speed against load resistances. And that means no real improvement in mileage. many mods will significantly affect and generally improve POWER, but it takes the same amount of power to move your RV against the resistances encountered. seems obvious that those with fuel injection can see an EASY 10-20% or even greater improvement of mileage over an identical carbureted model with an unskilled pedal-pusher. your engine is gonna work hard and eat fuel!!!īiggest improvement for mileage? Newer computerized fuel injection systems! More than any other modification of gear ratios, exhausts, intakes, trans, overdrives, or anything else. a couple strong backs can push 'em a few feet in neutral regardless of size. It really doesn't take much to get an RV rollin'. Short light "boxes" see little difference if any, from longer heavier "boxes". The combined load of wind resistance and drag can easily exceed the vehicle weight. How much drag? Enough to easily suck up a small car right up to your rear bumper!!! And the same power is holding ya back as speed increases. And EVERYONE has a similar drag since there's very little variation here. Seems the variations of frontal designs have only a small effect on mileage. the frontal load of wind may vary a bit among styles, but speed increases the frontal load inversely for everyone. The greatest influence in mileage, is SPEED! Seems nothing affects your mileage more. the trends I see myself, here among others, and those elsewhere. those extremes are of long durations of relative speed. And for last 4000mi of this year in Cruise Air II. I do keep full 100% records of fuel and mileage. I disagree with the notion that driving habits make a difference. With a low geared rear end ratio you can drive any way you like.you cannot change the MPG. Our 32 ft Elandan gets 6.5 mpg (and only because it is 5 ft shorter) Head wind. It just is what it is 5 mpg, thankfully gas is not 4 bucks a gallon anymore. ![]() I have never weighed the rig, but we never carry fresh water, or full holding tanks, tire pressure is always monitored, clean air filter, oil changed regularly etc. ![]() I once discovered a fuel leak at the fuel pump and just knew my mileage was going to double, no dice, apparently it only leaked while ideling, I guess at speed the fuel demand from the engine drew the fuel up the line so very little actually was lost. After numerous trips, short, long, flat, mid summer, winter, regardless the mpg never varies much above 5 mpg. Elanden with the 454 and have never gotten more than 6 mpg, 5 mpg is the standard, this is just a fact I have had to accept. Quote from: 89Elanden on February 26, 2009, 10:13 AM ![]()
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