Quote:
Originally Posted by pickemuptruck13
Well that makes since i was wondering how it calculated it. My truck is has a six inch suspension lift so maybe i am seeing a greater effect of wind drag once i am over 60. Well the good news is most of my driving is around 55! What kind of gas milage are you guys seeing? Thanks for all your help.  |
Much of this depends on your truck. I have the 5.4L engine SCrew 4x4 with 3.73 towing option gears and 275/65R18 tires. I also have a 200+# bed cap on it which sticks up about 6" above the cab giving both added wind resistance and added weight. So, I am not set up for fuel economy in this configuration.
On the highway, not towing and averaging in the 70-75 mph range, I can usually expect something above 15 mpg. Towing my 3600# trailer, at 65 mph, it becomes 12.7 mpg.
I am not a "leadfoot" coming off a standing start, and I don't brake aggressively. I'm probably in the 14's around town, but it's driven very little this way and Tucson has fairly high street speeds.
I suspect the lift IS hurting you. You're exposing more "hardware", under the truck, to the slipstream, which increases your frontal area drag. You're probably getting more turbulence under the truck too, but that effect may not actually be detrimental. Turbulence is not always bad.
- Jack