How far is out of gas ?

[Msfitoy]

Asking for trouble...at 50 mile warning, I'm headed for a gas station so I have a choice of fuel prices...running on very low tank or completely out can draw sediments from the bottom of tank...not worth the risk...

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[nevada.tracy]

I've gone 15 miles past 0. Then put in over 19 gallons to fill up

 

[Msfitoy]

I've gone 15 miles past 0. Then put in over 19 gallons to fill up

I bet the tanks really a 20 gallon...

 

[Dereku]

With the cost of a high pressure fuel pump I really would not push it. Its one thing running an old car with a mechanical pump out, takes forever but it will restart. Electric pumps can be a little touchy to sucking air. A high pressure fuel pump? No idea but I would not want to risk it.

 

[CATX]

Man, the Karens are out in full force on this thread. Somehow with jiffy lube and routinely running my cars to the low fuel light I’ve never had a major engine or fuel pump failure. Maybe I’m just extraordinarily lucky! Incidentally, I also never wear a mask and I’ve never had covid.

anyways, I once made it 20 miles past zero miles. Probably could have done more. The Karens of this thread have inspired me to do better next time.

just kidding. Different risk tolerances, that’s all.

 

[MrBirdman330]

Never really run past half a tank unless I want to drain it down. Which I burn about half a tank every two weeks so it's perfect.

 

[Jason B]

With the cost of a high pressure fuel pump I really would not push it. Its one thing running an old car with a mechanical pump out, takes forever but it will restart. Electric pumps can be a little touchy to sucking air. A high pressure fuel pump? No idea but I would not want to risk it.

Running low is one thing, running dry is another as you said. Especially since there is no fuel filter.

 

[12Bravo20]

While I am NOT a nanny or a Karen, I have had to replace fuel pumps due to owners constantly running their tanks to empt every time the fuel up. So yes there is always a chance of the fuel pump getting damaged. Now running all the way to completely empty now and then will probably not burn up the pump. Running to empty every time can and will burn up the pump.

Your personal experiences might be different. I am only stating my experiences.

 

[Peragrin]

Man, the Karens are out in full force on this thread. Somehow with jiffy lube and routinely running my cars to the low fuel light I’ve never had a major engine or fuel pump failure. Maybe I’m just extraordinarily lucky! Incidentally, I also never wear a mask and I’ve never had covid.

anyways, I once made it 20 miles past zero miles. Probably could have done more. The Karens of this thread have inspired me to do better next time.

just kidding. Different risk tolerances, that’s all.

ZERO miles until empty is a math question. The system your current average MPG as shown on your display and says at this MPG you have 50 mile remaining. so if you then drive gentlely you can easily get a lot more milage left especially if you towed until 1/4 tank then your ave mpg is a lot lower than your actual mpg. which can double your range.

 

[burchs]

Well whiling towing and finding out a planned fuel stop was closed I went awhile after it said zero and proceeded to put well over 19 gallons in it when I got to the next stop (memory fails me the exact amount) so I'm in the crowd that is guessing it's actually a 20 gallon tank based on my experience. The Miles to go is definitely not the most acurate thing though as I've had it down under 10 miles to go a number of times while showing an 1/8 tank on the gauge. The gauge always seemed about right at the next fill up.

 

[Saucy]

I nearly ran out of fuel while towing 3500ish lbs. Luckily it was very flat (Wyoming). After the center screen showed 0 miles left > I went roughly another 15 miles. I remember filling up almost 19 gallons, I don't remember exactly how much fuel I put in; no towing / light-foot, I guestimate 30 miles on reserve.

 

[OldBill]

On advice from one of the savviest auto technicians I know I try to never let my tank get under the 1/4 mark. With the fuel pumps now located inside the fuel tank, the pumps use the gas to dissipate heat. Constantly running the tank down low can shorten the life of the pump. Jack says that these new fuel pumps are rather fragile in spite of their cost. After replacing 2 fuel pumps on my old 2002 Ranger in under 5 years I took his advice. I was certainly guilty as charged for riding around on empty. So far so good with this last pump and his advice.

 

[JohnnyO]

I've gone 15 miles past 0. Then put in over 19 gallons to fill up

Same. Wanted to get to a gas station where I have a credit card.

 

[seasprite]

With the cost of a high pressure fuel pump I really would not push it. Its one thing running an old car with a mechanical pump out, takes forever but it will restart. Electric pumps can be a little touchy to sucking air. A high pressure fuel pump? No idea but I would not want to risk it.

This is a good point plus what about the injectors? Don't they open on the compression stroke? What happens when there is no high pressure fuel at the injector at the time of firing? Does the compressed air get forced in the injector along with other crap from the previous combustion cycles?
I'm not going to chance the damage I'll fuel up before it gets to zero.

 

[Jason B]

This is a good point plus what about the injectors? Don't they open on the compression stroke? What happens when there is no high pressure fuel at the injector at the time of firing? Does the compressed air get forced in the injector along with other crap from the previous combustion cycles?
I'm not going to chance the damage I'll fuel up before it gets to zero.

Good question. But the HPFP won't pressurize air to the levels it does with liquids, so who knows what happens.

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