Innacurate fuel reading

In 30+ years of CMV driving, the most (and often only) accurate fuel gauge I have ever used...

 

If you want to have a good accurate system to show you what you have in the tank, they make them but they cost more than the tank.

 

Just fill it up, and stop for fuel again before or at 1000 miles. You'll be good.

 

Start tracking your MPG per tank when you top off with a calculator. Then when you know what your truck averages you will have a better idea of how far you can run on a tank under normal conditions. Unlike cars most fuel gauges on semis I have operated have been inaccurate. My rig has 2-100 gallon tanks and when the low fuel light comes on I have 40 gallons left. This is always accurate on my truck. I reset the trip readout every time I fill up and my dash mpg is always .2 tenths better than what I actually get, so I can track current mpg accurately based on weather, loads and terrain changes which effect mpg. If you are traveling east to west you can expect to see a decrease in mpg based on how strong the headwind is.

 

This is the best answer... We have been going through this for months if not a year I don't know how many times we've had the sending unit fixed. At this point it's a waste of my time to do so and I just keep track of the number of miles. I use with my trip odometer and make sure I fill sometime between 800 and 900 miles.

 

I track my mpg with an app. I know for a fact my 30 day average 7.4-7.6 on a consistent basis. So, I figure on 7 mpg. I have yet to run out of fuel.

 

Get ya a measuring stick like in old days