tires gas milage

[Club Wagon]

As has been noted, just changing tire brands or air pressure can "affect your mileage".

Originally Posted by Adventure

Change all the gears and tires sizes you want, they really don't affect your mileage one bit!
As for gas mileage, changing tire size will do nothing
tire size and gear ratios don't come into the equation

Of course a 3.31 or 3.55 axle will return better MPG than a 4.10.

Note that published tire sizes still aren't always directly comparable & to find the true diameter/circumference you need to measure.

IMO most of the gas is burned just punching the hole in the air. I've experienced only minor MPG costs from loads. Changes between head winds & tail winds have made more of a difference in MPG than loads.

I wonder if anyone has attempted a High MPG conversion? Curious what the potential is for a lowered, tall skinny tired, tall geared, air effects Econoline?

I'm still impressed by Sprinter's 5 cylinder turbo diesel capability of reliable mileage in the mid, even upper, 20's MPG range. IMO there is no valid reason why FORD can't do better & produce an E-Series van that returns nearly 30 MPG. A stout 4 cylinder turbo diesel, tall gearing & more efficient packaging could turn the "E" into an environmentally friendly green machine.

[Genesis]

Originally Posted by Club Wagon

As has been noted, just changing tire brands or air pressure can "affect your mileage".



Of course a 3.31 or 3.55 axle will return better MPG than a 4.10.

Note that published tire sizes still aren't always directly comparable & to find the true diameter/circumference you need to measure.

IMO most of the gas is burned just punching the hole in the air. I've experienced only minor MPG costs from loads. Changes between head winds & tail winds have made more of a difference in MPG than loads.

I wonder if anyone has attempted a High MPG conversion? Curious what the potential is for a lowered, tall skinny tired, tall geared, air effects Econoline?

I'm still impressed by Sprinter's 5 cylinder turbo diesel capability of reliable mileage in the mid, even upper, 20's MPG range. IMO there is no valid reason why FORD can't do better & produce an E-Series van that returns nearly 30 MPG. A stout 4 cylinder turbo diesel, tall gearing & more efficient packaging could turn the "E" into an environmentally friendly green machine.

Totally agree on the aerodynamic issues as they make our vans eat fuel. I would simply say that that comes into play more with highway driving at higher speeds. Around town weight becomes the bigger issue as you have to continually get that extra load moving again. I think your right about the smaller turbo diesel being a viable option for better MPG's. I don't think anything else could move this kind of weight while returning fuel efficiency. With Gas and Diesel both becoming obscene the future of engines will certainly be interesting. Cheers

[Club Wagon]

That is especially true for Econolines used for in "town" deliveries, which add greatly to stop & go. Forget about high fuel consumption getting "that extra load moving again". At least you're moving! Stopped in traffic or idling during routine deliveries, vehicles get 0 MPG. In town you've got to work strategy. Accelerate like you've got an egg between foot & pedal, get off gas pedal immediately when lights change, try to coast or brake to avoid stopping, try to pace the lights as far down the street as possible & kill motor ASAP whenever you stop to get out.

Originally Posted by Genesis

Around town weight becomes the bigger issue as you have to continually get that extra load moving again.

I've been mostly a country boy & live ~1 mile from a divided/65 MPH highway & ~5 miles to 6 lanes of interstate-between towns. Probably 90% of the 225K on my Club Wagon was at speeds over 50. In my case aerodynamics "comes into play" a lot.

ABC News reported on Iceland's 1st Hydrogen station this week. To get to town I pass a solar energy instalation biz that's recently greatly expanded the solar array out front. I'm been ready for an electric for decades.

[Elias]

SMALLER TIRES = BETTER GAS MILEAGE
theres less tire that has to be on the ground therefor reducing resistance