Ha ha...that's right...this isn't the Bible I suppose.

 

Thats a little harsh Im getting 32mpg running at 78-80 mph. I always take my mileage and divide that by gallons I put in, not how much should go in it. Mine is a 2.2 auto and easily see those numbers and have seen up to 32 in town by just changing my driving habits. As far as older cars getting better gas mileage some do. My dad is driving an early 90s Grand Am get up to 35 in town way more than my car so yes some older cars can get better mpgs, probably not most but a few yes regardless of what people think. Believe it or not MY numbers are accurate and I am NOT inflating or embellishing my numbers. No way to really prove it to you guys, You could look on ecomodders.com and check out my gas log on the site I type in exactly what the reciept says and it caculates it out also so Im actually get two calculation from different places and both add up to the same thing so makes me think im doing it right, but who knows maybe me and the other calculation are equally wrong.

 

I'm sorry, but I drive VERY conservatively, and that just simply isn't possible to get 32 in town. No way, no how. Sorry.

 

I'm sorry, but it is possible... Not practical though...

If you NEVER use your brakes and accelerate very modestly and coast a lot you don't waste energy, which could yield those numbers. It would tick off anyone behind you ( a lot!), but is possible.

 

Ive only achieved it once im not claiming im getting that every fill up, but it is possible. dont use your brakes alot I used coasting and the gears to slow me down and leave space between the next car. On that tank I even experimented with shutting the engine off at lights if I happened to hit them, guess it works. Did you happent to check out www.ecomodders.com ? You really should, you would learn alot.

 

2009, 2.2, 5 speed manual Getrag with 3.95 final drive and .81 fifth gear (new ratios for 09) returns city and highway combined average of 40 mpg Canadian.....that's 14 km per liter using Sunoco Plus 89 octane with 10% ethanol. That's about 33 mpg US.

 

Already posted this in the tall tales thread since no one believes me but just in case they dont look at that thread.

The numbers I gave are not unrealistic at all. Im not saying im getting 32mpg in town every tank. Just managed to squeeze that out of one and by using some extreme measures wich I no longer use(to much of a hassle), but I am still seeing 26-28mpg in town and 30-32mpg on the freeway really. I feel if I had a manual my numbers would be even higher. As far as calculations go mileage divided by gallons = MPGs, so lets say a normal tank for me I can get almost 400 so 385 divided by say 14 gallons =27.5mpg. If my calculations are wrong by all means correct me. I have litterally had some one else check my calculations and plugged my numbers from my reciept directly into a mpg calculation on another forum im on. To say that 3 different people/programs are all wrong is a pretty big statement.

Heres my numbers, so it was actually 31.52mpg sorry my bad, 122.6 miles and 3.89 gallons of gas, which according to my calculations is 31.52mpg. Heres another one for you 547.4 miles and 17gallons(put a few gallons in at a quick stop to make sure I had enough) 95% Highway miles doing 75-80mph, resulting in 32.2mpg. So now its your turn to do my calculations and see for yourself. If im wrong I will admit it and go on if your wrong do the same.
http://ecomodder.com/forum/em-fuel-l...vehicleid=2960

 

Well, I will admit then you may be right. I was thinking you get that consistently. On a tank (about 400 miles) I can average 30mpgs, which would result in really high numbers themselves (either city or highway)...so I really shouldn't be talking...lol 26-28 in town with regular driving is very possible, and that's pretty close to what I'm getting.

So, I admit, it was a misunderstanding on my part. I thought you consistently were getting that....

As far as your numbers, they look legit. Only thing I will mention, is it's more accurate the more miles (or gallons) you drive. So, when you went 122.6 miles and used 3.89 gallons, that may not be quite as accurate for an average as the 547.4 mile trip was. If you drive 500 miles, that will average out the accelerations and other things that may make differences. If you drive 10 miles, you might be getting 32mpg, but it wont read that if you had to floor it to get on the expressway. See what I mean?

But I believe your numbers. I take back what I said, with my apologies.

 

I totally agree with you about driving more to get more accurate numbers for the entire tank, and after looking at it that way I should have mentioned that before hand and apoligize for that as well. I still think that if I were to do a full tank like that I could pull those numbers again. Guess I'll have to challenge myself to get that on a full tank and then post up about it. After my weekend trip I will begin to do that just to prove it can be done on a full tank. Will let you all know how it goes in week or two.