I was told that not letting your gas tank get lower than 1/2 full gets you better gas mileage (and saves you money). Has anybody tried this? Does it work?
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When do you fill up?
- Thread starter Diakonos
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I fill up when I get really low on gas. It's almost a game to see how much I can take out of the tank before I have to refill. I have a 22 gallon tank and managed to get 21.7 something gallons in it the other day, but that includes a top off.
Filling up any sooner than when the gas light comes on is poor time management. 
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when i was in college and waited tables at the OG, i would only put $5 at a time. it was 25 miles to work. i was stoping every damn day. i became best friends with the people at the gas stations.
Don't turn on your headlamps (in the sun), leave the A/C off(if you've got it),leave off the CD, fan, anything electrical actually, and you'll save petrol{gas}.
I won't be filling up at all soon, as it's just getting rather expensive
I won't be filling up at all soon, as it's just getting rather expensive
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i the alt. and comp. will still put a load on the engine. as far as i know the alt. load will be the same, the comp. will make little difference.Nick+ said:Don't turn on your headlamps (in the sun), leave the A/C off(if you've got it),leave off the CD, fan, anything electrical actually, and you'll save petrol{gas}.
I won't be filling up at all soon, as it's just getting rather expensive
1/4 full keeps the sediment that's naturally in all gasoline from being pumped through your ignition system.
westb51 said:
A/C adds 10-12% to fuel consumption.
Headlamps too, ever noticed when you're idling and turn the lights on the engine idles slower? I've only got a metric 'estimate' , but headlamps add around 1/2 a litre more of petrol consumption per hour driven.
Maybe with those huge engines you have in the USA, this is all not noticable...........
"Use electrics less
Car electrics impose an extra load on the engine, making it work harder and burn more fuel. Air conditioning can increase fuel consumption by up to ten percent in stop-go traffic. At motorway speeds, air conditioning increases fuel consumption by three to four per cent. Flow-through ventilation reduces the need to drive with air conditioning on or with windows open, both of which consume more fuel. A sun roof can reduce the need for air conditioning, but when the roof is open at motorway speeds, wind resistance is increased and greater fuel consumption will result. "
http://www.og.dti.gov.uk/downstream/emergencies/down_emerge.htm
I drive bicycle.
Ive heard this too.
Supposedly, keeping it above half, allows for less air to be in the tank, and therefore less pressure. Which in turn uses less gas...or something along those lines...
I almost never us a/c or lights, only when it's really dark.
Supposedly, keeping it above half, allows for less air to be in the tank, and therefore less pressure. Which in turn uses less gas...or something along those lines...
I almost never us a/c or lights, only when it's really dark.
i always wait until it's just barely empty, or when the light comes on and then it's off to the gas station wasting another precious 20 dollar bill.
Sorry dude, but you're on crack if you think that's true. It has been proven by AAA that using air conditioning on the highway actually SAVES gas when compared to driving with even just a a drivers side (only) window down. And that doesn't take anywhere near 10%. During stop-and-go, use your windows, as the air pressure doesn't add hardly any strain to the engine.Nick+ said:
how does ac lower fuel consumption on highway? 
As compared to windows rolled down. The wind pressure which is added to the car (like riding on a motorcycle with your jacket only half zipped up; like a parachute, etc...) and causes extra stress on the engine, thus more fuel consumption.LexusGS said:
westb51 said:
No the engine is working harder, power is being taken away from the engine and is being used for the lights.
Just another example , I was commuting for 4 months, 40 minute drive twice a day. In March there was a lot of fog and grey weather (but no rain). I had the lights on all the time. I thought something was wrong with the engine as the fuel consumption was perceptively worse(there was a difference) during that period, but the engine was fine........
That is how it was explained to me. Have you tried it? Does it work?myCATpowerlifts said:
I was also told that...
FishOrCutBait said:
I burn at least 40 gallons of gas a week just back and forth to work. I fill up every other day.
my b/f, and I always wait untill it hits a little before the solid line of Empty. We sometimes even wait till it's right on the solid line. 
Funny story, but not at the time it happened. We were driving South on Turnpike from Orlando, FL to Miami, FL. Well, we were on a half a tank. We drove, and drove, and then realized that there wasn't a service station in site for miles. Well, lets just say we were sweating bullets.. hahaha, not really, but we were concerned. I have tripple A, but everyone knows how long they take.
Anyway, with the last bit of gas, we were able to make it to a service station. Just that feeling of not knowing if we were going to make it to a service station was somewhat intense.
Funny story, but not at the time it happened. We were driving South on Turnpike from Orlando, FL to Miami, FL. Well, we were on a half a tank. We drove, and drove, and then realized that there wasn't a service station in site for miles. Well, lets just say we were sweating bullets.. hahaha, not really, but we were concerned. I have tripple A, but everyone knows how long they take.
Anyway, with the last bit of gas, we were able to make it to a service station. Just that feeling of not knowing if we were going to make it to a service station was somewhat intense. 
It's easier to balance my checkbook if I fill up less often - 
musclepump said:
if you like to keep your interior in mint condition. having the windows rolled up the majortiy of the time is also the best thing to do
and cost effective if you're on the highwayLAM said:
