Just cuz my fully loaded G cost 40K back in November 2002 doesn't mean it's worth that much now and if you go downhill in 6th gear at 45mph with A/C off you'll get around 99 miles per gallon

Believe it or not, once the car is warmed up... if you coast with the car in gear, your foot completely off the gas, and the RPM's and speed are above a certain level(I think it's like 1300 RPM's and 35-40 MPH) your car uses no gas at all. The ECU in almost all modern cars is programmed to completely shut off fuel flow in those situations and then resume fuel flow when you either put your foot on the gas, the speed drops below the predetermined MPH Mark(which as I mentioned earlier is somewhere around 40 MPH), or the RPM's drop below the predetermined RPM Mark(1300 RPM).

I have verified this on both my G35 and my Tacoma using my scangauge. When you coast in those situations as I mentioned, the scangauge reads out 9999 Miles Per Gallon on the real-time fuel economy readout.

The difference between coasting in gear and in neutral though is soo insignificant that you will pretty much never notice it because they both use very small amounts.... unless you live at the top of a several mile high hill and can coast/compression brake for a real real long time on your daily drive.

Excellent examples BUTT, those are all 60 and 70k cars. The average car, independent of prior care, starts to breakdown and need major repairs at around 70 t 80k. Not necessarily the condition that you want a car to be in when you buy it. I do see your point and I'm sure you can understand mine. M.S.R.P. on mine was $38k, just a year and a half ago.

this is not new technology

engine braking consumes no fuel at all or a very minuscule amount if anything

fuel IS consumed however if you're coasting and maintaining speed...a very small amount...but still

just wanted to say I picked up the car today and I love it!

Actually I have gotten better mpgs after I went to stock everything. This weekend was definitely a record for me. Drove 555 miles round trip on Shell 93 Octane, with stock everything. Set tires to 35psi, filled up gas before I left, filled up once on the way back with $20 worth of gas, and finally filled up when I got back. Total filled up of 20.475 gals.

= 27.016 MPG AMAZING!

Didn't use cruise and average 72mph or so, with a few instants of 80+mph for overtaking.

Comparatively using JWT Pop Charger w/Z-tube on the same trip gave me ~22mpg consistently.

Ok STOP hating on the OP, I have to admit it should be a lil easier to swallow the gas price if you own a 35K car... however prices of gas have gone up over 2x in a few years...

My family, while not wealthy, but by no means middle class have the following cars:
1. Audi A8L
2. Mercedes S500
3. BMW 528
4. Honda Accord
5. Chevy Venture Van
6. G35

Now im not saying it is impossible to pay for gas.... BUT!! it cost our family close to 2,000 to fill them all up.

Even for a family who makes solid six figures, we are feeling the pain at the pump.

So stop hating on people complaining about gas prices, people with great salaries are feeling the pain at the pump.

I mean come on our electricity bill in the summer is close to 1,500 a month...

Im just saying... lets not hate just remember, we are all in different positions in life.

Good Luck to all..

Let the flamming begin ...

better mileage..uhmm proper inflation of tires, clean intake, good oil, better driving habits... etc...

Get a scanguage II. Of course it will not in any way directly affect your mpg, you will have it staring you in the face. If you're conscience of it, you're more likely to make better gas saving decisions when driving (e.g. slower acceleration, constant rpms up hills, coasting etc).

The factory Navigation unit also reads out real-time fuel economy as well for those of us who have it. It just uses a weird outline of a leaf that fills up for the display the higher your fuel economy is, instead of a digital numerical printout of the real-time economy.

Something is off in your fuel economy calculating... because our cars have a 20 gallon tank, so for you to have put in almost 20.5 gallons of gas, your tank would literally have to have been completely bone dry, AND either the fuel pump at your gas station was off by about a gallon over the course of a 19-20 gallon fillup, and/or you topped off your gas tank when filling up(by about half a gallon to a gallon) which means that your fuel economy measurements/calculations will probably be off by somewhere in the vicinity of 1.5 MPG(your economy might have actually been higher than you figured). 555 sounds a little ridiculous though, that's a good 100 miles more than I can remember anyone else ever reporting getting out of a full tank, and if that's your true number of miles that you got out of that tank, you would have realisticly gotten about 28.5 MPG assuming you ran the tank from capacity(not topped off) down to bone dry. The only way I get 28 real-time MPG in my car is if I cruise along at about 50-55 MPG in 6th gear on a flat road(as indicated by my cars built-in Nav system and also verified by a ScanGauge)... anything faster than that and it's less, since I get about 23-24 MPG @ 65 MPH.

His numbers are possible.

He DID state putting $20 worth of gas in along the way. Or probably 5 gallons. So I assume that, when he arrived, he put in about 15.5 gallons for a total of 20+ gallons.

I've done that before when I worried about making it on a tank of gas, and the station was expensive.