In this era of high gas prices and dependence on foreign oil this is more imporatant than ever. What are most important action affecting fuel economy that drivers of existing vehicles can take other than buying newer vehicle? Especially interested if reducing extra weight from things like bike/boa…

Remove the roof rack. In addition to the weight, it’s a HUGE aerodynamic drag. Basically a worst-case scenario: It’s a “bluff body,” protruding directly into the airstream, in a location where the air likely flows at a velocity in excess of the surrounding airstream. P.S. Lowering weight generally…

Well I added a supercharger to my daily driver, but it didn’t increase fuel economy. I also had 4.10 gears put in the car as well, that did increase city mileage somewhat, since it’s now possible to drive in 5th gear at 35 MPH and not lug the engine. Previously I would’ve had to drive most of my co…

If you cannot “upgrade” to a more fuel-efficient vehicle, then all you can do is– Maintain the car flawlessly. Keep your tires inflated to a few lbs over the tire pressure recommended by the vehicle manufacturer (no more than 5 lbs additional, or you risk impairing the car’s handling qualities …

One thing I focus on is speed. I will probably get beat up over this, but it is legal to drive 65 MPH where the speed limit is 70 MPH, and if you use cruise control at the same time, driving 65 MPH will probably save you more fuel than just about anything else mentioned here so far. I usually only…

Bike racks, ski racks, and roof storage boxes create a lot of extra wind drag and resistance. Take them off when not needed. Reduce weight, you might not see a big difference tank per tank, but over time extra weight reduces fuel efficiency. If you have heavy 3rd rows of seats that are never used…

In this era of high gas prices and dependence on foreign oil this is more important than ever. I know this statement has little to do with the actual question but; I feel it’s like people trying to avoid foreign made cars. IT"S IMPOSSIBLE TO NOT CONSUME FOREIGN OIL and we shouldn’t try !!! IMO, a…

If you drive a lot of open highway, you can always drive behind the tractor trailers. Don’t tail gate them, just drive behind them. The bit of slip stream you get into will increase your fuel economy a bit. Also, they tend to travel at or just below the speed limit, which will allow you to save e…

First do the brick mod. That is drive as if there was a brick under the accelerator. You likely will be surprised how much of a difference that can make.

We have a newer car with an average and instant gas mileage readout. Zeroing the average mileage meter while driving at 60 mph (65 limit) results in a nice mpg number, better than the EPA figure. That number is brought down significantly with low speed traffic conditions with stoplights etc. Driv…

Numbers don’t always matter when it comes to true fuel economy. Fewer drives is a great way to save. Learning how to cook would have saved me some bachelor money but there were these great restaurants in Caribou Me. at the time. The waitresses thought I sat there reading Playboy Magazine. For the r…

Factors affecting fuel economy

Power/Fuel

impala61 April 5, 2011, 10:33pm 14

Is it speed or rpm’s that matter? For instance, if you’re at the top (rpmwise) of a gear at 55 mph and at the bottom of a gear at 60, wouldn’t going 60 be better?

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Factors affecting fuel economy

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