10% Mileage increase... free...

[attack eagle]

Think about it from a dead stop though - if you mosey on up to 55 MPH you spend some time at 5, 10, 15, 20, etc. along the way. If you floor it up to 55 MPH, you spend a lot less time at the slower speeds.

depends on the vehicle... an engine with a torque heavy lower rpm would benefit from a low rpm slower acceleration, but a car with low torque (like all bmws, except maybe the v12s) would benefit from getting up to peak torque (max VE) more quickly in first and second.

Okay - not quite sure I understand this part... but look at it this way. Drive down a flat road at speed. Then either a) let off the gas with the car in gear, or b) let off the gas with the car in neutral. The engine will use an idles-worth of gas either way but in neutral you will go really far. In gear you will slow down much faster. If you did both options a) and b) for the same time interval (on separate trials), your mileage would be higher for b) and the gas spent (amt. of gas to idle times the time you were idling) would be the same - hence higher MPG.

0 gas when off the loud pedal and over 1000 rpm.

Some people (dangerous people) actually turn the car off during the glide. I would never do that unless I had a death wish... but that is the optimal situation for MPG savings.

Or unless you have a car with no power steering & non vacuum boosted power brakes, like many compact 60's-70's cars or the electrical systems that substitute for them on hybrids.
In that case you can run just as safely with the engine off. I've coasted down a mountain in the mgb with the engine off (cracked head).

In anycase, 2 mpg = 24 miles MAX gain per tank, for a lot of frustration over many hours of driving... all to save $4. Skip the coffee, or take your own drinks for lunch/breaks and you have saved just as much... especially at 1.25 for a fountain drink or a vending machine 16 oz.

I'm just frustrated that I have to pay twice and fill up twice using my debit card to fill the tank... cause it shuts off at $50 or $75 depending on station.

Tip:
Avoid gas with 'air quality' additives like ethanol or mbte etc and you'll pick up 2-3mpg a lot easier...


The closest I come to the hypermile idiocy is to slowdown in gear for lights, and try to time my route so I hit the lights when they are green. htat is worth 3-5 mpg itself.

there are a couple that are out of sequence and close together (1 block) so I clear the first intersection quickly (so other traffic isn;t held up) then decell for the next light.