Dirk Diggler (05-21-2019)
View my fuel log 2013 Space Star Cleartec Intense 1.0 manual: 53.8 mpg (US) ... 22.9 km/L ... 4.4 L/100 km ... 64.6 mpg (Imp)
I only see 2 lines on the fuel pump assembly. One supply line that goes to the engine and another one that looks like a vent? I never looked that close before, maybe it is a return line. I've seen some returnless systems before older Mustangs, I believe they varied voltage to the fuel pump to help regulate or raise pressure as needed.
Fortunately our pumps have a built in baffle to prevent it from starving, but I still donít like the idea of running a tank that low.
Avoiding a very low tank of gas and using high quality fuel is an easy way to get long life out of a fuel pump.
View my fuel log 2015 Mirage DE 1.2 automatic: 43.4 mpg (US) ... 18.5 km/L ... 5.4 L/100 km ... 52.2 mpg (Imp)
It's good to know that every drop can be burned! I did the same experiment(unintentionally) with my first car. Had to push it half a mile down the highway to get to a gas station in my case.Originally Posted by pantherblue
I too wish zero was zero too but with some intelligence the digital fuel gauge is useful as is. The flashing fuel gauge appears to commence at exactly 29 litres(7.66 gallons) burned. I think its safe to stretch the tank then 1 gallon past the blinky guage. Just note the mile it starts blinking and add your tank average mpg to that and get gas then.
I like my Mirage to much to do what you do. What's gained by running your car empty and putting an extra strain on your fuel pump? I don't mean to be critical, but I see no wisdom in that at all? On a positive note, you proved it's an approximately 9.2 gallon gas tank!
Speaking for myself at least it's pathological. I'd rather get more out of each tank, they made the tank so small on us after all, I want to use every bit of it you know. I've heard the fuel pump thing but think it's largely exaggerated or outdated. But I live in a flat area where I can consciously stay light on the gas reducing strain. If I had to contend with mountains or steep hills there would be more reason to worry for sure.Originally Posted by Mark
Still more, I stretch my tanks mostly when I'm waiting for an anticipated drop in price to happen. If I save $0.80 a tank waiting for a 10 cent drop in price each time... Call it penny wise pound foolish if you want but with ebay fuel pumps available for $12, after surviving 15 low tanks the fuel pump effectively is paying me. Running bone dry is certainly not worth it, for the push to the gas station alone.