guys there's the facts from edmunds.com and thats what hyundai said a new tib should get. Unless you drove downhill for 300 miles your not getting 40 mpg, in other words it's possible but you'd have to be in ideal conditions most of the time you'd need to be idling going downhill. (usually I am getting 29-31 depending if i did more in town or highway that fill up)

the only way to do this is to set your trip when you fill up. Then the next time you fill up divide the # on your trip by the # of gallons you put in. If your wheels are some crasy size or your speedo's off, your not getting accurate numbers. for instance the other day my speedometer said 55 one of those radar machines on the side of the road said 54 and i'm on stock wheels.

Number of miles driven= mpg
number of gallons used

and no you can't just divide by 14.5, well you could but you would need to run it till it's dry as in broken down on the side of the road(thats what the range #'s are above). btw, my fuel guage hits e when i still have 4.5 gallons (used 10). if i fill up right when the idiot light comes on I still only put in 12 gallons. I think some of your guys methods are super screwed up.

 

On a side note, its interesting that a 3.5L 280 HP V6 can get better gas mileage and accelerate to 60 in 6.6 seconds, despite weighing so much more.

Im talking about the new Toyota Avalon which gets an EPA rated 31 mpgs. Amazing in my opinion.

 

Mr. Supercow, i think your remarks are super screwed up. Do you realise that i average 30-31 MPG when im driving around town. I always fill up and almost everytime i check my MPG. Its easy, i have a calculator on my phone so its very easy to figure out exactly what im getting.

THis is starting to get me a lil anrgry that sombody is telling me what my car is doing, with my driving habits, with my recording of information and doubting my abilty to properly check my gasmilage.

Also Supercow you wrote that the EPA ESTIMATES 31MPG highway. SO that would not be Hyundai's numbers, that would be numbers ESTIMATED by the EPA.

Im going to go take a pictures tonight to prove that right now im getting more than 31 MPG. With a mixture of highway/city.

 

Agree. I think shifting below 2000 RPM will give you more load on the engine then shifting at 2500-3000 RPM. Same with cruising. More load = more fuel.

 

Double A is correct... those are EPA estimates as produced by their computer controlled "driver" on a closed "course" using "average" driving.

Also, like him.. I average 31 mpg just about everytime I fill up. That is a combination of highway, backroads, and city driving...

And yes, you do check your average fuel economy by setting your trip when the car is full, and then when you fill it up again, you divide the number of miles driven by the number of gallons you used. You do not need to drain the tank to bone dry to figure out your MPG.

Now then.. let's keep this civil. Any flaming will result in points. Do not think I am arbatrarily taking Double A's side.. I have seen those kinds of fuel averages in my own tib, so his is not a fluke.

 

k filled up from same spot i was at last time'

i could only get 13.6 gallons in it

went the same distance

 

I got

Shell conventional oil
Hyundai oil filter
2 doses of auto-rx engine flush
Hyundai spark plug wires
NGK V-powre spark plugs
87 octane fuel
every 10,000 miles use Chevron Fuel system cleaner


I got about 36 MPG A/C on City/Highway mix.

 

well about the epa estimates, i didn't know that i figured thats what hyundai reports, US probably checks it out and passes it along. I also get 29-31 on every fill up.

anyways what I was talking about was 44 mpg and the "i got this many miles on a tank" (no reference point). I'm not flaming but 44 mpg is impossible unless (like i said) he was going downhill for like 300 miles.



44 mpg is an extremely impressive number, look at how close that would be to the #'s a honda hybrid gets. still not impossible, just unlikely.

 

I still average 32 mpg for a mix of city and interstate driving, and that's despite flooring it all over the place. I think that my intake/exhaust play a big part in the economy. Few people here have identical mods.

Also, someone who normally drives aggressively most of the time, and suddenly tries to be economical for a few tanks should not get results as good as someone who drives with fuel efficiency in mind most of the time, since our ECU adjusts itself to our driving habits. Those are probably reasons why people are reporting average MPGs so far apart. It's also normal for some cars off the line to get poor mpg, while others of the same model do better than they're rated for. Variability is expected even when the cars are brand new and supposedly identical.

I'd like to see someone getting terrible mileage reset their ECU and see if there is an improvement.

 

Do you guys top-off your tanks?