[GTAcruz]

I thought the same thing when looking at my fuel gauge. After I started it back up after my 250 mile trip back home the fuel gauge went down really fast and I was out of gas really quick.

Once you turn off the car, the trip reset to 0 and that is when they scam you. Your remaining miles stay the same. You are not going to get another 295 miles.

If you keep on driving, your average mileage will drop really fast.

The remaining estimate mile is pretty close to what you have left. You might squeeze out another 200 miles, but you will never get another 295 miles.

Edmund rated it at 477.9 maximum range on highway. How are you going to get 576? Manual or cruise control will not get you another 98 miles.

You have to chalk this one up as busted.

DTE is simply an estimate and highly inaccurate, till you get close to empty

Edmund is using EPA HWY number of 27mpg (no actual testing)
EPA mpg estimates are based on a “driving loop” with variable speeds
When hypermiling/cruising, your speed is fixed as much as possible, there can also be favourable weather conditions and drafting when you can,,, so it will always exceed EPA numbers


EPA loops for reference
I believe, EPA has stopped using “highway” and publishes the “high speed” as the highway MPG now. (I could be wrong on this)

 

[Greyhair]

I only found one way to get better gas mileage on the highway and that is to set the cruise control at the lowest rpm on the highest gear which is usually 45 mph. Driving 45 mph on the highway might get you rear ended.

Lower speed is always better fuel economy on the highway.

 

[GTAcruz]

I only found one way to get better gas mileage on the highway and that is to set the cruise control at the lowest rpm on the highest gear which is usually 45 mph. Driving 45 mph on the highway might get you rear ended.

Lower speed is always better fuel economy on the highway.

On the turbo DCT earliest you can get into 8th gear is 84km/h (52mph) manually. on rural roads here, speed limit is between 60 to 80km/h - so I have to speed up get to 84 shift and slow down and it will hold 8th gear at lower speed - it won’t do this in automatic mode.

Keep in mind the MPG was strictly steady cruising… my life time MPG is around 20/21mpg… I do a lot of city driving…

 

[Greyhair]

There is the Accumulated Information if you scroll down from the trip since refueling. On the Santa Fe it states 21.3 mpg since the beginning when the milage was zero. The Hyundai Santa Fe suppose to get 25 city/28 highway.

Once I get my SC back from the service department, I am going to check my Accumulated Information to see how many mpg I got since I purchased the SC.

 

[kentechmobi]

You understand that there is no "supposed to get" mileage right? The EPA mileage estimates are there more for comparisons and an idea of what a vehicle can/did do on their very controlled courses. Unless it's changed, they only actually test about 15% of new car models. On the other 85% they take the manufacturers word for mileage. Every driver and geographic area is different but under the right circumstances you can get the mileage stated. The vehicle is capable but you have to do your part.

 

[JMII]

DTE is simply an estimate and highly inaccurate, till you get close to empty

Correct. DTE is constantly being updated and is based on recent MPG - not the current tank, not accumulated but the last handful of miles. I've seen the number go UP even as the tank gets low. This happened when I was stuck in a terrible traffic jam (going nowhere = 0 MPG) and the low fuel light came on because I was idling and running out of gas. However a few minutes later traffic cleared up completely and I started driving at normal speeds (getting about 22 MPG). The low fuel light went off and my range went from 40 to 60 miles.

DTE is dynamic thus the number it reports at fill up is a guess - you could get more OR less. As you drive the number will adjust and become more accurate. Its accuracy is totally dependent on you getting the same MPG as each gallon burns off. Then as the tank gets lower the margin of error is reduced.

 

[New to the game]

DTE is simply an estimate and highly inaccurate, till you get close to empty

Edmund is using EPA HWY number of 27mpg (no actual testing)
EPA mpg estimates are based on a “driving loop” with variable speeds
When hypermiling/cruising, your speed is fixed as much as possible, there can also be favourable weather conditions and drafting when you can,,, so it will always exceed EPA numbers


EPA loops for reference
I believe, EPA has stopped using “highway” and publishes the “high speed” as the highway MPG now. (I could be wrong on this)
View attachment 17255 View attachment 17256 View attachment 17257

A lot of people keep talking about drafting. Does anyone realize how close you need to be to the vehicle in front of you to get any real benefits. Unless you know the person in front of you your just going to get in a road rage situation. Not fuel savings.

 

[GTAcruz]

A lot of people keep talking about drafting. Does anyone realize how close you need to be to the vehicle in front of you to get any real benefits. Unless you know the person in front of you your just going to get in a road rage situation. Not fuel savings.

Let’s use some common sense…
This isn’t NASCAR and not looking to get with in couple feet to get 95% efficiency…
There are 4 distant setting with your Smart Cruise Control, set it-and use it..

Myth Busters did an episode a while back “myth of big rigs” - drafted from 2’ to 100’ at highway speed -from 10’ they estimated 40% efficiency and at 100’ 11% efficiency… i‘m sure there are other studies out there

Pointless behind a sedan… tractors trailers punch a large hole and can be safely behind.
No one is advocating riding on someone’s tail…
I don’t have the patience for driving to be fuel efficient, but on a long trip, sometimes I’ll try to see what the mpg I can achieve is..

 

[danco]

A lot of people keep talking about drafting. Does anyone realize how close you need to be to the vehicle in front of you to get any real benefits.

7 inches?

 

[kentechmobi]

7 inches?

If you ain't swappin' a little paint, you ain't close enough!

 

[New to the game]

If you ain't swappin' a little paint, you ain't close enough!

Rubbing is racing 😆 😆😆😆