Hey Waggy, come to Connecticut 
I give certain members some slack, Conjur happens to be one of them
I give certain members some slack, Conjur happens to be one of them
Here's a question for Roger: Since liquid sloshes around a container of a moving object, if your tank gets low, is it possible your pump might suck some air if you take a corner while low on fuel? If so, could this damage anything?
I know very little about cars but the above is something I've heard many people say. For that reason, and just because I don't like to be low on gas, I always fill about the 1/4 mark. I like to be able to just get in my car and go when I need it and not have to worry about stopping to get gas right away. Never know when you may be in a hurry and sparing a few minutes for gas could be a problem.
Also, anyone that has done long distance road trips knows that there are still some places of the U.S. where you can go long periods without a gas station, especially in the wee hours of the morning when many places are closed. Better to fill up often and have extra than to risk running out in the middle of nowhere.
-DAGTA
I know very little about cars but the above is something I've heard many people say. For that reason, and just because I don't like to be low on gas, I always fill about the 1/4 mark. I like to be able to just get in my car and go when I need it and not have to worry about stopping to get gas right away. Never know when you may be in a hurry and sparing a few minutes for gas could be a problem.
Also, anyone that has done long distance road trips knows that there are still some places of the U.S. where you can go long periods without a gas station, especially in the wee hours of the morning when many places are closed. Better to fill up often and have extra than to risk running out in the middle of nowhere.
-DAGTA
Negative, on fuel injected vehicles, the fuel pump sits inside a small well on the bottom of the gas tank thus preventing the pump from sucking air when the level get's low.
I especially like how the logo graphics at the top are spelled differently than the domain name and the text description. I wonder which it really is.
Originally posted by: Chaotic42
Well, I'm not a carologist, but it seems like all of the various water, bits of crap, and other impurities would settle to the bottom of the tank. On a full tank, they make up like 1% of your tank. On an almost empty tank, it would be 50%.
It's like drinking from a big sink of water with eggs and bits of food at the bottom. You're better off if it's full.
If the water is .5" above the crap, it's probably gross.
This is true...I've actually clogged my fuel filter by driving around low on gas. As soon as you fill up it kicks that junk around and it goes into your fuel system.
Vic
Elite Member
- Jun 12, 2001
- 50,422
- 14,337
- 136
Most new cars have a fuel light that comes on when the tank still has 2-3 gallons left in it. Refill then and you have no worries. Refilling at 1/2 tank is ridiculously anal.
Cars do NOT get better gas mileage above 1/2 tank. Car manufacturers DO purposely rig fuel gauges to read inaccurately and drop slowly at first, so that the 1/2 tank line in most cars is really more about 1/3 tank.
Cars do NOT get better gas mileage above 1/2 tank. Car manufacturers DO purposely rig fuel gauges to read inaccurately and drop slowly at first, so that the 1/2 tank line in most cars is really more about 1/3 tank.
Mr.IncrediblyBored
Lifer
- Jun 18, 2000
- 11,208
- 772
- 126
Threads like this remind me why I make it a point to listen to only a handful of folks for any advice regarding car repair or opinions on new vehicles.
respecki
its spelled wrong because I am not done with it obviosly, and havent paid the man yet. Smartass
Not too bad considering its only 20 bux for the whole thing im overloaded with work as it is, I really dont care about my site, I get about 15 overhauls a week. Then I balance my own project, coupled with a few high performance, CNC digitizing jobs. Its crazy as hell out here. My site is just a means of communicating to my buddies over at binderbulletin.org
So Munchies, are you still going to stick to your "water is ok in your fuel system" theory along with the "fuel pumps do not require cooling" theory ?
Water in large ammounts of course is not good, some condensation in the tank over time (decades) might rust some stuff, and clog lines with rust, but other than that no. I have run a water/alcohol jet system using a carb baseplate on a 19:1 race engine, with great results. Fuel pumps do require cooling,but the gas doesnt do it in my truck. I happen to have in in tank system on my !CARB'D! scout, and just for the hell of it, I stuck a thermometer in my tank a few minutes ago, and it measured 1/2 degree lower than the ambient temp outside.
Zenmervolt
Elite member
- Oct 22, 2000
- 24,514
- 44
- 91
You do realise that an electric fuel pump running dry (i.e. without fuel running through it) will quickly heat up to well above ambient temperature? The water in a radiator is well above ambient temperature while the engine is running but it still provides cooling. A substance does not need to be below ambient temperature to function as a coolant. The gasoline running through a fule pump most definitely does function as a coolant.
ZV
Well about fuel slosh... pretty common in a lot of cars including my own.
At high grip cornering situations you can sometimes deprive the pump for picking up fuel to maintain a constant supply to the injectors. You'll prolly never encounter this in normal everyday driving anywho. It causes a loss a fuel pressure... car will buck like mad under power. Surge tanks can fix that.
JulesMaximus
No Lifer
- Jul 3, 2003
- 74,578
- 982
- 126
15 overhauls a week of WHAT? Engines? You can't overhaul 15 engines a week even if you're just doing the old backyard rings/bearings/gaskets rebuild.
Much less perform a high performance overhaul, which is much more work.
I certainly hope you're talking about overhauling websites or something.
Little late here, but I've always filled up my Honda when it gets around the halfway mark. I do it cause I've learned that any point lower than that, the fuel gauge varies widely, and have managed to trip the low fuel sensor when going around curves with 1/4 tank. Other than that, it was nice last year when I didn't have to fill up my car for several days when there was no gas in the Phoenix area.
we bow to roger, the car expert of ATOT
glad you're on this one, false information has been a flyin'!
glad you're on this one, false information has been a flyin'!
Yes it is but it really depends on the pump. A little pump powering a neon won't get hot but if your using an aftermarket pump they usually say on the box to not run it empty. I have a Walbro 340lph fuel pump and it gets alot louder when the tank is below 1/4 tank.
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