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RE: [RC] MPG and diesel trucks - Susan & Jerry MilamWhat MPG are you getting at the speed you travel with your trailer Truman? Susan -----Original Message----- From: ridecamp-owner@xxxxxxxxxxxxxxxxx [mailto:ridecamp-owner@xxxxxxxxxxxxxxxxx] On Behalf Of Truman Prevatt Sent: Thursday, June 15, 2006 9:20 PM To: Susan & Jerry Milam Cc: 'Debbie Lyons'; 'Ridecamp' Subject: Re: [RC] MPG and diesel trucks Your mpg hauling will be more determined by you speed as any other factor. Wind resistance (or drag) is a significant factor in your mileage - especially pulling a big box behind you. Drag does not go up linearly with your speed it goes up with the square of your speed. That is the force from drag that has to be overcome at 60 mph is 4 times the force of drag that has to be overcome at 30 mph. The power required for an object to overcome the drag force goes up with the cube of the velocity. That is the power required to pull a horse trailer at 60 mph is 8 times that required to pull the same trailer at 30 mph. The fuel used is directly proportional to the power required to be generated. A boxy trailer will generate more drag that one with an aerodynamically efficient nose. Removing your tailgate will reduce your drag. There is a pretty good discussion at http://en.wikipedia.org/wiki/Drag_%28physics%29#Drag_at_large_velocity My truck will pull my trailer down the highway at 80 mph but I sure take a big hit in mileage. Sixty to maybe 65 seems to be the best compromise for me - to get decent mileage while not losing my patients on how long it takes to get somewhere. Truman Susan & Jerry Milam wrote: Getting 14 MPG hauling fully loaded with my 2004 GMC 2500 Duramax. Travel steady 58 MPH on highways........ Susan -- "The opposite of a correct statement is a false statement. The opposite of a profound truth may well be another profound truth." Niels Bohr -- Nobel Laureate, Physics =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Ridecamp is a service of Endurance Net, http://www.endurance.net. Information, Policy, Disclaimer: http://www.endurance.net/Ridecamp Subscribe/Unsubscribe http://www.endurance.net/ridecamp/logon.asp Ride Long and Ride Safe!! =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= __________ NOD32 1.1601 (20060615) Information __________ This message was checked by NOD32 antivirus system. http://www.eset.com =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Ridecamp is a service of Endurance Net, http://www.endurance.net. Information, Policy, Disclaimer: http://www.endurance.net/Ridecamp Subscribe/Unsubscribe http://www.endurance.net/ridecamp/logon.asp Ride Long and Ride Safe!! =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
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