Cruising range
#1
Cruising range
I have had my TCH for over a year now. The cruising range shown on my first tank of gas was 571. Now it shows 505 after I fill up. Anyone find that the cruising range is not accurate? I am averaging 35 MPG. so it seems it should show ~580. Any thoughts?
#2
Re: Cruising range
I think the 505 is about right. The TCH leaves about 2 to 3 gallons in reserve. It does not calculate range using the reserve, but I could be wrong.
Last edited by David Price; 08-08-2007 at 06:33 PM.
#3
Re: Cruising range
The cruising range is to empty at which time there is still nearly 3 gallons left. Empty on my car is consistently 14.5 gallons. If you are averaging 35 mpg, 505 is accurate. I normally drive 60 miles after I hit empty and still have gas left.
You will also see your range go up and down as your mileage increases or decreases and it is also dependant upon what you did on your last tank. Overall, I'm impressed with how accurate it is.
#4
Re: Cruising range
Cruising range can also be distorted by how you end each refulling event. I have found that the computer ignores fuel "topoff" above a certain point which is not necessarily the gas pump shutoff point, and as a result, the first part of the range calculation tends to read low because the tank is still "full" as far as the electronics are concerned. It gradually adjusts itself once the tank level is in the sense range of the system.
The same situation initially ignores any "topping off" after the first fuel shutoff. I usually do an additional topoff after the first shutoff to a point that I have predetermined for the fuel nozzle in order to have a consistent tank full quantity.
The same situation initially ignores any "topping off" after the first fuel shutoff. I usually do an additional topoff after the first shutoff to a point that I have predetermined for the fuel nozzle in order to have a consistent tank full quantity.
#5
Re: Cruising range
I usually fill up at the same pump and station. I have found that after the auto shutoff, I can top off with 2 gals. usually. Your're right about the TCH computer doesn't count the topped off gas.
#6
Re: Cruising range
#7
Re: Cruising range
For years I have learned to put the nozzle on low and once it auto shuts off, thats it. I place the nozzle back on the pump. It did take me a while to find a level drive in front of a pump that had a good brand of gas. I read that if you overfill you can get gas in the charcoal canister thats under the hood. I forget its purpose but I would rather to keep it dry as its designed. I have had a few times over the years that the auto shutoff nozzle would not work. Then gas running down the side of the car.
#8
Re: Cruising range
Cruising range can also be distorted by how you end each refulling event. I have found that the computer ignores fuel "topoff" above a certain point which is not necessarily the gas pump shutoff point, and as a result, the first part of the range calculation tends to read low because the tank is still "full" as far as the electronics are concerned. It gradually adjusts itself once the tank level is in the sense range of the system.
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