Fuel Lesson Learned

[Mavster Mechanic]

So you are completely ruling out the obvious possibility that people are filling their tanks over Ford's stated capacity, WITHOUT fueling past the first click?

I was GOING to say... (but you beat me to the punchline)....

I've pumped 15 gallons to first automatic click off at least 4 or 5 times.

I've pumped 16 gallons to first automatic click off at least 2 times.

And once; an astonishing 17.0 gallons to automatic click with a VERY slow pump that took like 14 or 15 minutes to fill. I thought I was recharging an EV!

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[Cherokee]

Why do you say that?

Most EV (while not towing) go 300+ miles. Nothing to see here.

Then what ?
I’d have to wait hours for a full charge to get back. I mean, to reach a sign like that 130 miles til, I’d have driven some distance. Then back.
Same old fear from those of us with range anxieties.
Gasoline fill up take minutes.

 

[MaverickDragon]

The Lobo and Tremor are EcoBoost models and actually have the larger tank. They are not hybrids.

Good point. My bad. Thanks for the correction.

 

[mikellmikell]

As a retired fuel systems Engineer I can tell you that the standard fuel sending system will have about 2 gallons left when it's on E.. Back in the 90's when computers and flow metered fuel lines first came out we made E mean E. Took about 3 months into production to change that to 2 gallons left. Cadillac and Corvette owners don't like to walk

 

[MaverickDragon]

I've pumped 15 gallons to first automatic click off at least 4 or 5 times.
I've pumped 16 gallons to first automatic click off at least 2 times.
And once; an astonishing 17.0 gallons to automatic click with a VERY slow pump that took like 14 or 15 minutes to fill. I thought I was recharging an EV!

Well okay then.
It makes little sense that Ford significantly understates their tank volume, but they obviously do, as based on your personal experience, I have to agree with you.
Otherwise you would be violating several laws of physics to accomplish that feat (unless of course you got the Tardis fuel tank option)
How about this.
When filled up and the fuel delivery shuts off at the first click, and the trucklet is run to the low fuel warning, how many gallons makes it into the tank when it stops delivery at the first click of a normally operating gas station pump?

If that approximates 13.8 or so gallons, it implies that Ford decided to include an unstated reserve capacity, and/or they don't want their vehicle running with a low fuel level.
Who knows.
Maybe they have a valid reason.

Maybe someone who has done that can comment. I'd try it myself but I'm still on my first dealer filled tank and it may be a month before I need to add fuel.

 

[MaverickDragon]

As a retired fuel systems Engineer I can tell you that the standard fuel sending system will have about 2 gallons left when it's on E.. Back in the 90's when computers and flow metered fuel lines first came out we made E mean E. Took about 3 months into production to change that to 2 gallons left. Cadillac and Corvette owners don't like to walk.

Neither do EV drivers, but they don't have the option of bringing back a gallon of electricity.

The 2 gallon under E is likely the case here. An "empty" 13.8 gallon tank with a 2 gallon "reserve" would mean the tank when filled to first click would hold 15.8 gallons, and a very slow feed or repeated attempts to overfill the tank could fill up the needed expansion air space remaining.

I still find it interesting that unlike every other of 25 or so cars I've owned seemed to have included those 2 gallons (I ran more than a few to dry) in their stated fuel capacity and Ford did not.

 

[Glen Baker LLC]

Then what ?
I’d have to wait hours for a full charge to get back. I mean, to reach a sign like that 130 miles til, I’d have driven some distance. Then back.
Same old fear from those of us with range anxieties.
Gasoline fill up take minutes.

Exactly
That's right, I get a full tank of gas 450 mi of range in about 7 minutes.
And those signs that say 130 MI no Services, doesn't mean that when there are Services there is going chargers.
Let's not forget our speed limits out west are a little faster than back east. And not so flat.

Nine states with 80 mph limits: Idaho, Montana, Nevada, North Dakota, Oklahoma, South Dakota, Utah, and Wyoming.
Highest limit in the US: Texas has a stretch of toll road with an 85 mph limit.
I can of course always extend the range of my hybrid Maverick.
When I feel I need it.

Neither do EV drivers, but they don't have the option of bringing back a gallon of electricity.

The 2 gallon under E is likely the case here. An "empty" 13.8 gallon tank with a 2 gallon "reserve" would mean the tank when filled to first click would hold 15.8 gallons, and a very slow feed or repeated attempts to overfill the tank could fill up the needed expansion air space remaining.

I still find it interesting that unlike every other of 25 or so cars I've owned seemed to have included those 2 gallons (I ran more than a few to dry) in their stated fuel capacity and Ford did not.

Exactly

 

[AVC]

Said the guy who likes replacing fuel pumps....

Yeah, I run it dry all the time, or never....

 

[wax87]

But he doesn't have to make extra gas stop every year or so.

I totally over looked that advantage point, thank you for enlightening me

 

[Mavster Mechanic]

Recharging an EV takes about 1 hour.
Sometimes 45 minutes.

Not hours.

There are rare cases you'd need to wait in line. But EV drivers are chill by nature. So it's not a problem.

 

[AutobahnSHO]

I still find it interesting that unlike every other of 25 or so cars I've owned seemed to have included those 2 gallons (I ran more than a few to dry) in their stated fuel capacity and Ford did not.

DEFINITELY this!

 

[AutobahnSHO]

Exactly
That's right, I get a full tank of gas 450 mi of range in about 7 minutes.
And those signs that say 130 MI no Services, doesn't mean that when there are Services there is going chargers.
Let's not forget our speed limits out west are a little faster than back east. And not so flat.

I worked at McDonald's in Evanston WY (on I-80, 3 miles from Utah) when I was young. The next McDonald's east or west are 70miles. South it's hundreds of miles? North it's at least 100miles.

It cracked me up hearing "old people" tell other "old people" to make sure to get gas every town they saw, because there were hardly any gas stations in Wyoming. I always thought, "DUH!"

Then I moved East and see that it's tough to get anywhere where it's more than 10miles between McDonald's or gas stations. And I see so many people on the side of the road run out of gas.

 

[mikellmikell]

GM has 2 more gallons than stated. Unless they changed in the last 4 years.

 

[HeyBales]

Well okay then.
It makes little sense that Ford significantly understates their tank volume, but they obviously do, as based on your personal experience, I have to agree with you.
Otherwise you would be violating several laws of physics to accomplish that feat (unless of course you got the Tardis fuel tank option)
How about this.
When filled up and the fuel delivery shuts off at the first click, and the trucklet is run to the low fuel warning, how many gallons makes it into the tank when it stops delivery at the first click of a normally operating gas station pump?

If that approximates 13.8 or so gallons, it implies that Ford decided to include an unstated reserve capacity, and/or they don't want their vehicle running with a low fuel level.
Who knows.
Maybe they have a valid reason.

Maybe someone who has done that can comment. I'd try it myself but I'm still on my first dealer filled tank and it may be a month before I need to add fuel.

My post above with fillup amounts was never much past E.
Actually, E is a thick line, the right-side of E line.

And mostly got over 13.8.

This one was exactly 7 miles past 0 DTE, and city driving so easily half EV mode, little extra gas used.

 

[HeyBales]

Neither do EV drivers, but they don't have the option of bringing back a gallon of electricity.

The 2 gallon under E is likely the case here. An "empty" 13.8 gallon tank with a 2 gallon "reserve" would mean the tank when filled to first click would hold 15.8 gallons, and a very slow feed or repeated attempts to overfill the tank could fill up the needed expansion air space remaining.

I still find it interesting that unlike every other of 25 or so cars I've owned seemed to have included those 2 gallons (I ran more than a few to dry) in their stated fuel capacity and Ford did not.

From the looks of the top of the tank above where the filler line goes in - there are no penetrations for controlled air release. (unless the fuel pump doesn't really sit level, and filler line is higher than it appears, or I'm not seeing holes in those ebay pics)

So the fuel level goes up into upper area as much as the weight of fuel in the filler line can apply pressure. Which can't be much in comparison. Appears to be a big space for air only.
Seems like good method to contain fumes, as long as the fuel is high enough, nothing is coming out but fumes from surface area in filler line, only when it finally goes down to the filler line, or a steep down hill, would extra fumes escape.
So the splash back by constantly going past the auto-shutoff clicks is really only adding filler line quantity of gas.
Also why pressure needs to be released for hybrid when you push button for opening door.

Now I'm wondering if the 12V battery current is higher during sleep on low tanks due to fumes able to come out and canister gets them and checks are run, compared to high tank and it's blocked by the fuel.

I take back my comment about Ford attempting to lighten the load - 15 lbs can't be enough to make a difference, but from the design, it would always be in there anway.
The EB is just allowed to go lower than the hybrid.

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