Overhead Computer less accurate when not reset?

[Blackshadow2804]

So I know these things aren't the most accurate in general, but I read somewhere that when you don't reset the trip ODO each time you fill it becomes less accurate.

Do you agree with this statement? If so why does not resetting it affect it like that?

Mine seems to be reading 3/4MPG high, which isn't preferable, but I can just deduct 100 miles from my DTE and I have a pretty good way to estimate my remaining range

 

[Docwagon1776]

I don't know the exact time limit for your truck, but the distance to empty is calculated on the last X number of miles driven. I don't know what X equals in your truck, some make/models are as low as the last 20 miles for the moving average used to calculate DTE. Resetting it forces it to forget those miles and start fresh until it hits X again, when the oldest miles start to roll off in favor of the new ones.

 

[18CrewDually]

The display is of the continuous miles traveled averaged.
I see the best results to reset it anytime I hook to or unhook from a trailer since the trailer is the biggest changing factor and would throw off the reading due to the trip average from the last reset.

 

[HemiLonestar]

If you want it somewhat accurate for that specific trip then yes because until you do, it is averaging everything since the last reset.

 

[Blackshadow2804]

I don't know the exact time limit for your truck, but the distance to empty is calculated on the last X number of miles driven. I don't know what X equals in your truck, some make/models are as low as the last 20 miles for the moving average used to calculate DTE. Resetting it forces it to forget those miles and start fresh until it hits X again, when the oldest miles start to roll off in favor of the new ones.

Is there a way to figure out what that number is?

 

[Docwagon1776]

Is there a way to figure out what that number is?

If it's not in your manual, probably just have to search around on line.