Cruising Range - yes I already did a forum search

It will get closer the more thanks you drive. It is still learning.

 

For long life of fuel pump, avoid running the tank very low on fuel.

From AGCO Automotive Repair Service - Baton Rouge, LA - Detailed Auto Topics - What Causes Fuel Pumps to Fail is a good explanation:

"
To cool and lubricate the internal components, fuel must flow continuously through the fuel pump. Insufficient flow limits cooling and lubrication of the pump. A leading cause of fuel pump failure is running the fuel tank low. This is particularly critical on late model vehicles without a fuel pressure return system. Running such a vehicle out of fuel once can permanently damage the fuel pump.
When the fuel level is low, the pump has to work much harder to produce the same pressure. This is because the reduced fuel weight no longer pushes fuel into the pump. Instead the pump must draw the fuel in. A low fuel level also means less fuel to dissipate heat and lubricate the pump. The combination of an overworked pump, reduced cooling and lubrication will likely damage the fuel pump.
"

The site later recommends refilling at a quarter tank. I tend to think lower levels are ok, but I do think the 'buffer' has other purposes besides letting you drive longer.

Focus on mpg or L/100km, not on how far you can go by cramming gas into the spout and running the tank out.

 

Hate to break it to you, but with over 80k miles on my car, I have never seen the Cruising Range readout to show any accuracy. It always drops to 0 range when I have around 150 miles left in the tank.

 

The car is designed to drop to 0 with ~1.5 gallons left. At 50 mpgs that would be right at 150 miles... but that's pushing it.

Maths were pointed out to be incorrect... should be 75 miles.

 

1.5 gallons x 50mpg = 75miles no?

 

Yes... sorry, brain not awake yet. Not sure what is wrong with Raidins car then. I've driven over 80 miles after 0, but when I did I had to put in ~9.5 gallons of gas, which is what the car is rated at. There is more in the tank, but not much.

 

I've seen it go 0 where I was able to go 200 miles. I do drive slow and get over 60 MPG regularly.

 

Still, that's a lot...I've seen it the other way around, where my car will beep and flash the last bar and I still have like 50 miles left... but not this way. Weird.

 

So you are able to drive 150 miles after it blinks 0? Or you are driving farther than the "initial" prediction? Initial prediction will get closer in accuracy as the car gets a lifetime mpg of your driving. But extreme weather or driving can offset this as well.

 

There is only 1 bar. The C doesn't get to 0 bars. This behavior that you are mentioning doesn't sound right. The car is supposed to be at 0 miles when the car starts flashing the final bar. I've seen the final bar with a few miles left on the remaining, but not the other way around. As a general rule(not set in stone by any means), when it says 0 you have ~1.5 gallons left.

 

Keep filling it up, it'll adjust. Give it time... it's like novocaine or the modified veer.

 

Only the half bar is reasonably accurate. But you have to catch it at the exact moment it hits the half bar.

 

With the vagaries of this meter, I strongly doubt that you will get even delayed gratification.

This meter tries to guesstimate something that it cannot accurately predicted, due to unknown but highly variable future conditions. My household's other new car makes this more obvious by rounding the range estimate to the nearest 10 miles. It also uses a much shorter history base, so that estimate rises and falls sharply in mountain driving.

You are overthinking this 'feature'. Give it up.