[hyunwoo92]

I don't usually drive on the empty tank like that but today on the way back from work, I was too lazy to stop by the pump, and I think I drove about 8 more miles to my house. tmrw first thing in the morning imma goes straight to the gas station. does anybody know how far more can i drive with 0 miles range?

 

[JacobP]

A lot of cars use the gas to cool the fuel pump, so running on empty can potentially damage it.

Oh yeah, I also have done such experiments on other cars before. A decade ago my car stopped just two blocks away from the gas station as I was heading to there and I almost got a ticket for parking in the wrong area. The other time, I kept postponing filling up until I decided, ok the next one it is! Well, my car stopped maybe a mile away from the gas station. It's a scary experience to leave the car parked on a busy interstate shoulder where vehicles pass at 75mph... Don't do these experiments.

 

[YRMed]

About 2 gallons

 

[on2]

From my previous observations (I've done this quite a few times when hypermiling), when you hit 0 miles left and fill up the tank, the petrol pump automatic shuts off at 15.900 gallons. The tank capacity is 17.2 gallons according to Honda.

So 1.3 gallons remains after the meter hits 0 miles. If I'm hypermiling, I can usually get 38+ MPG which means I should be able to eek out 50 miles after the meter hits 0 miles, but this is with my driving habits, my driving style (hypermiling), my car (I4, CVT, has certain modifications for high MPGs).

A good estimate for a normal driver may be somewhere around 35 miles left.

So why is there 1.3 gallons left in the tank after hitting 0 miles? One reason is to keep the pump cool and lubricated as stated above. The other reason is so that people don't really run out of gas when it hits 0 miles. Honda is being conservative to save people's asses and their own asses.

 

[GradyPhilpott]

There are about a dozen reasons why driving on empty is not good for your car.

It's best to refill at a quarter tank or definitely when the light comes on.

My grandfather used to say that it's best to drive on the top half of the fuel tank, just to be on the safe side.

I don't see what running on empty has to do with hypermiling, which I understand to be as using various techniques to get the best possible fuel mileage.

 

[on2]

I don't see what running on empty has to do with hypermiling, which I understand to be as using various techniques to get the best possible fuel mileage.

Less gas, less weight, better mileage.

I get noticeably better mileage (1-2 MPG) when there is a 1/4 tank or less left.

Which is confirmed by 2 instruments that I use when I hypermile: the Torque app on my Android phone and by my Scan Gauge II.

I also do range driving; trying to eek out as much mileage as possible out of one tank of petrol. So far, I haven't seen anyone best my number in my sig. Someone has beaten my single tank MPG average, but not my range (640 miles).

With 1 gallon of fuel left in the car at 0 miles, there is enough fuel to keep the pump cool and lubricated. I am not concerned.

If this were a 'real' issue with Honda products, then you would be seeing fuel pump issues being posted all over the place (like on BMW, VW, Audi forums where fuel pump issues are widespread).

 

[Pilm1112]

View attachment 79746

idle looks high

 

[Dum_Plings]

just looking at the picture gives me range anxiety! aranoid:

 

[cyberdork]

Some cars will shut off prematurely before you even run out of fuel to prevent the pump from running dry. Some vehicles even have a switch that needs to be reset on the pump if this happens. Not something you want to be hassled with pushing your luck.

 

[Fis753106]

idle looks high

engine is still cold.

 

[SSMV6]

How close is the nearest gas station? you probably have 1/2 gallon left in the tank when the range goes to 0. It's only good for about 10 miles on a cold engine or 15 on a warm one. OP, Hope you have a full container of gas ready in the trunk!

 

[Dudley]

https://www.youtube.com/watch?v=exYlaxQrlJM

On2 - check out the above link. 770 miles on a tank.

 

[tl2accord]

https://www.youtube.com/watch?v=exYlaxQrlJM

On2 - check out the above link. 770 miles on a tank.

And this, 50 mpg with econ on

https://www.youtube.com/watch?v=5w_OarnM-ts

 

[on2]

Ohhh my wow. I thought I was doing so well.

Blegh!

It seems like his average MPG should be much higher though to achieve that range on a single tank, should be somewhere in the 44-45 MPG range.

Actually, looking back again. None of his numbers add up. Sure, some have said that their trip computers can be off, but it shouldn't be off by that much.

Looks like he has the LX which is the lightest trim with the smallest, lightest diameter wheels, both of which aid efficiency.

The 50 MPG video was just a current trip average. Anybody can do that. That's nothing depending on the length of the trip and elevation.

 

[Dudley]

He runs the tank way down and puts in 18 or 19 gallons. He must really top off the fuel neck and maybe the expansion area.

Yeah that 50 mpg was just for his last trip not a whole tank. I may try for that someday. I got a 46+ mpg tank on my 7th gen once (and several around 45 - dozens in the low 40's). The 9th gen is more efficient so I think I have a shot. Just need to get a long enough trip where I am not in a hurry and/or battling headwinds.

 

[greg1c]

I know on both my Acura's (2001 MDX and 2005 TSX) you can change the setting on miles to empty. I seem to remember they were both default set to +20, anybody know if it is adjustable on the Accord?

 

[Frankie13]

Check out www.tankonempty.com

 

[on2]

Check out www.tankonempty.com

And just what the heck does that have to do with anything?

 

[Frankie13]

I'll let you find out for yourself.

 

[easymike]

After a while, I started tracking the range when I fill up. Most of these are consecutive, all of them are automatic pump shutoff, and about 90% were fillups at the same exact pump at my local Shell station. The fuel light almost always comes on at about 70 miles range. I calculated remaining fuel by subtracting my fuel added from the 17.2 gallon rated capacity.

Long story short, for my driving (lifetime average of 34.3mpg), the fuel light comes on with about 3.5 gallons in the tank, and the range says 0 when you're down to about 1-1.5 gallons. I might be able to make it 50 miles, but that will be different for everyone.