HYBRID 2.5 MILEAGE......800 MILE TANK

[OARWHAT]

Snowbird......Mileage to Alabama and beyond 800 MILE TANK
Maverick XLT CYBER ORANGE MOON ROOF LUXURY PKG TRIFOlD COVER 2.5L HYBRID FWD. Deliver 1/25/22

Absolute mileage....worked in quality 25 years collecting data.....left Mi 2° on 2-5-22 OD 587 mi. arrived Al 60° on 2-6-22 OD 1620 mi. 1033 mi highway 33.54 gal. = 30.79 MPG. Next fill up top off @ walmart in Gulf Shores on 2-22-22.......had to do a few laps in the parking lot to hit my target of 800 mi , warmer,gentle, local flat land driving, OD read 2420.2 Yieid was 46.81 MPG could not ask for more, most driving done inn eco mode for whatever that may mean.....Topping off the tank is a real pain nursing the tipoff for the last 2-3 gallons until it backs up and out of the tank fill tube......this is only way to get ABSOLUTE numbers......reading the gauge needle or indicated numbers on dash, or when the pump kicks off are ball park figures. Given an extended time frame of multiple fill ups on pump kicking off will allow the numbers to even out but you need to record all the data over a period of period time. Given the rising gas prices us hybrid owners could not be in a better position....I am 999% satisfied other than the speakers sound like a clock radio, but my hearing is getting bad anyway, sounds better when I have my hearing aids in, it is what it is !!!!!

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[Clarkdonbran]

My Mav wants to be like yours when it grows up!

 

[Randy H.]

Speaking from another Quality Control professional perspective. Walter Shewhart (Father of Statistical Process Control - SPC) would disagree with your analysis for you induced uncontrolled variation into the process. The amount of extra fuel (top-off) put into the system after shut-off has skewed the final results. Therefore your control limits are out-of-control.
...Man that was some geeky Quality Engineer speak, even for me...

 

[SpacemanSpiff]

Topping off the tank is a real pain nursing the tipoff for the last 2-3 gallons until it backs up and out of the tank fill tube......

You should not do this with a Hybrid!
The fuel tank is under pressure, and you could actually destroy your vehicle from fire. Check the owner's manual, there is a warning about topping off the fuel tank on a hybrid model!

On Page 176 of the (PDF) 2022 Maverick Owner's Manual:

WARNING: Stop refueling when the fuel pump nozzle automatically shuts off for the first time. Failure to follow this will fill the expansion space in the fuel tank and could lead to fuel overflowing.​

​

WARNING: Do not overfill the fuel tank. The pressure in an overfilled tank may cause leakage and lead to fuel spray and fire.​

 

[OARWHAT]

So all the different pump manufactures all kick off @ the same level.......talk about uncontrolled variation.......when the tank is filled and will not take another drop on a constant basis there is no variation other than temp, driving habits, terrain, traffic conditions.....all my 800 miles where driven by me under same local conditions, what would you suggest for most accurate numbers?

 

[Rob Cactus Gray]

So all the different pump manufactures all kick off @ the same level.......talk about uncontrolled variation.......when the tank is filled and will not take another drop on a constant basis there is no variation other than temp, driving habits, terrain, traffic conditions.....all my 800 miles where driven by me under same local conditions, what would you suggest for most accurate numbers?

I would suggest weighing the vehicle before and after a fill up. This confirms how much fuel is added. Once ready to fill up weigh again. Confirming how much is burned off. Weigh the truck while empty or with the exact set up as before. Also weigh it on the same scale if possible.

 

[Randy H.]

So all the different pump manufactures all kick off @ the same level.......talk about uncontrolled variation.......when the tank is filled and will not take another drop on a constant basis there is no variation other than temp, driving habits, terrain, traffic conditions.....all my 800 miles where driven by me under same local conditions, what would you suggest for most accurate numbers?

My original reply was only meant to be facetious. But IMHO, the best "crunching numbers" method would be Root-Mean-Square (RMS) over a series of fill-ups, record values when the pump shuts off for the first time as your data points.

 

[OARWHAT]

I would suggest weighing the vehicle before and after a fill up. This confirms how much fuel is added. Once ready to fill up weigh again. Confirming how much is burned off. Weigh the truck while empty or with the exact same ire and as before. Also weigh it on the same scale if possible.

Great idea if scales are available next to the gas station

 

[NJ Pinelands]

You should not do this with a Hybrid!
The fuel tank is under pressure, and you could actually destroy your vehicle from fire. Check the owner's manual, there is a warning about topping off the fuel tank on a hybrid model!

On Page 176 of the (PDF) 2022 Maverick Owner's Manual:

WARNING: Stop refueling when the fuel pump nozzle automatically shuts off for the first time. Failure to follow this will fill the expansion space in the fuel tank and could lead to fuel overflowing.​

​

WARNING: Do not overfill the fuel tank. The pressure in an overfilled tank may cause leakage and lead to fuel spray and fire.​

This is never a problem for me. I am so cheap I never put in more than $20 at a time.

 

[NJ Pinelands]

If going to the trouble of trying to be accurate it isn’t hard to find a Gas station with a scale. The irony of your test is the damage is does. Ruining the Mavericks evaporative emission control system will hurt your fuel economy.




This isn’t being cheap, it’s being silly or poor. Unless gas prices go down you won’t save any money. While increasing the wear on your fuel pump and risking running out of fuel. All for nothing.

I have 126,000 miles in 10 years. It is not like I use $60 a day.

 

[APD]

I would suggest weighing the vehicle before and after a fill up. This confirms how much fuel is added. Once ready to fill up weigh again. Confirming how much is burned off. Weigh the truck while empty or with the exact same ire and as before. Also weigh it on the same scale if possible.

How about realistic suggestion?

The scale would have to be at the pump

And the MAXIMUM difference between a completely full and completely empty tank is 82.8 pounds. A typical scale that can weigh a vehicle would not be accurate to even 3 pounds, and thus would be off by half a gallon minimum

If we are going to include absurd unrealistic options, then you would want to create your own tank of known volume/weight and then measure the volume used or weight of fuel used.

 

[OARWHAT]

You should not do this with a Hybrid!
The fuel tank is under pressure, and you could actually destroy your vehicle from fire. Check the owner's manual, there is a warning about topping off the fuel tank on a hybrid model!

On Page 176 of the (PDF) 2022 Maverick Owner's Manual:

WARNING: Stop refueling when the fuel pump nozzle automatically shuts off for the first time. Failure to follow this will fill the expansion space in the fuel tank and could lead to fuel overflowing.​

​

WARNING: Do not overfill the fuel tank. The pressure in an overfilled tank may cause leakage and lead to fuel spray and fire.​

Thanks for info I do not intend to do this on a regular basis. Collecting data over an extended time frame will give reasonable accuracy but not for a given tank I stand by my data for my last 3 tanks. I did this to mostly see what Mav hybrid is capable off. THANKS

 

[Rob Cactus Gray]

How about realistic suggestion?

The scale would have to be at the pump

And the MAXIMUM difference between a completely full and completely empty tank is 82.8 pounds. A typical scale that can weigh a vehicle would not be able accurate to even 3 pounds, and thus would be off by half a gallon minimum

If we are going to include absurd unrealistic options, then you would want to create your own tank of known volume/weight and then measure the volume used or weight of used.

Ok. Perhaps run the tank to empty and fill it up with weighted jerry cans. But yes scales are next to gas pumps at a lot of truck stops. Didn’t realize the level of accuracy was so poor. Where is your genious idea?

I have 126,000 miles in 10 years. It is not like I use $60 a day.

I still thinks it’s silly but to each their own. The cost of stopping at a gas station 2 more times to get the same amount of gas is inconvenience enough for me.

 

[BoboysTruck]

This isn’t being cheap, it’s being silly or poor. Unless gas prices go down you won’t save any money. While increasing the wear on your fuel pump and risking running out of fuel. All for nothing.

My brother asked a question which got me wondering....
If you run out of gas, can you drive the hybrid Mav until you get to the nearest gas station?

 

[APD]

Where is your genious idea?

The guy is just trying to figure out his fuel mileage as best he can, not calculating the fuel requirements to land on mars.

Fill up tank until it automatically shuts off
Reset trip odometer
Drive
Come back to same pump and refill until auto shut off
Divide odometer reading by amount of fuel dispensed by pump

Its not genius, its realistic, practical, and accurate enough.

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