Why is it cheaper to re-fuel my car everyday as opposed to once a week?
If i drive to work every day and re-fill my car with petrol once a week it costs me £60, yet if i re-fill my car every day it only costs me £5 per day, so thats £35 for the 7 days!!
So where does the extra £25 worth of fuel go???
Answers:
Somebody at work has a length of hose and a funnel.
Um, no idea :S
I've no idea but I will definately try it!
Weird.mine is cheaper to refuel for the week than to refuel daily!!
You didn't mention if you refuel in the same place each time and use the same petrol - ie just unleaded and not super.do you mix??
It's still in the tank!
That is a good question. I spend £10 a week on petrol if i refill it weekly, just if i put £40 in it only lasts me about 2 weeks yet i go the same distance.
Perhaps its something to do with the weight? The car will use more fuel carrying the excess fuel stored, consequently if you only put enough fuel in for your trip, the car in theory ought to be more economical as there is less weight to carry around, hence racing cars and bikes only carrying enough for their laps, and refueling as needed!
simple . gas is heavy. so drive with an empty tank knowing you will add a little tomorrow and you are almost 150 lbs lighter. in stop and go traffic it adds up.
prices of petrol could go up week by week therefore it could potentially be cheaper to re fuel day by day! although petrol prices are decreasing at the moment. its gr8
carrying the weight of the fuel in the tank around burns more fuel in the engine
For the 60 quid you don't use all the fuel ie empty tank at the end of the week therefore you use 35 quids worth of fuel per week.
If you want to save on fuel look at
http://www.petrolprices.com/
its to do with the extra weight. As your car is ligter then less fuel is needed in order to make it go. Also widing down a window will create more drag which means that you will use more fuel.
It seems that by the end of the week, you wouldn't use every last scrap of fuel. Its probably still in your tank and the needle doesn't register this amount that accurately.
Alternatively, when you know you only have a small amount of petrol left, perhaps you are more conservative with your driving.
Absolutley no logic at all. In fact it would cost you more.because you are expending more mileage to stop off at the petrol pumps and then go on to work. where as if you only visit the pumps once a week less mileage. Not unless of course you work at the garage. And of course you choose the amount of petrol you require.
Perhaps your tank is narrower at the top and widens out as it goes down therefore when you allow it to run down there is more volume to fill
Your fuel in your tank actually burns faster as it reaches the bottom.
So what i do is fill her up to about 3 quarter of the tank (keep that fuel at a constant) and then keep topping up - keeping the fuel burning at a lower rate.
Are you sure you don't have a petrol leak somewhere on the tank?
The full tank of petrol burning more fuel as it's heavier logic isn't really true, the extra fuel you burn will be so minimal it won't get noticed. The weight of a full tank of petrol doesn't even add up to the weight of a small child. If a tank of petrol adversely effects fuel consumption like that, petrol would not have been an economical fuel. A modern family car weighs in at just over a tonne so about 30KGs strapped to the back is not really going to effect anything.
its not all over your feet is it??
In theory the best thing to do is to add petrol daily but to keep the tank level low so that the weight of the car is less. I wouldn't recommend this because its bad news if you run out!
When adding £5 worth of petrol daily are you sure that you are filling the tank.The missing £25 worth could be accounted for by falling level day after day.
Less weight and fuel price fluctuation.
Simple !
The less weight you carry around, the more MPG you get.
So a tank near empty will use less fuel, than a full tank.
could be as most people say, the weight increase. maybe it has a small leak. petrol can evaporate quicly too.
So where does the extra £25 worth of fuel go???
Answers:
Somebody at work has a length of hose and a funnel.
Um, no idea :S
I've no idea but I will definately try it!
Weird.mine is cheaper to refuel for the week than to refuel daily!!
You didn't mention if you refuel in the same place each time and use the same petrol - ie just unleaded and not super.do you mix??
It's still in the tank!
That is a good question. I spend £10 a week on petrol if i refill it weekly, just if i put £40 in it only lasts me about 2 weeks yet i go the same distance.
Perhaps its something to do with the weight? The car will use more fuel carrying the excess fuel stored, consequently if you only put enough fuel in for your trip, the car in theory ought to be more economical as there is less weight to carry around, hence racing cars and bikes only carrying enough for their laps, and refueling as needed!
simple . gas is heavy. so drive with an empty tank knowing you will add a little tomorrow and you are almost 150 lbs lighter. in stop and go traffic it adds up.
prices of petrol could go up week by week therefore it could potentially be cheaper to re fuel day by day! although petrol prices are decreasing at the moment. its gr8
carrying the weight of the fuel in the tank around burns more fuel in the engine
For the 60 quid you don't use all the fuel ie empty tank at the end of the week therefore you use 35 quids worth of fuel per week.
If you want to save on fuel look at
http://www.petrolprices.com/
its to do with the extra weight. As your car is ligter then less fuel is needed in order to make it go. Also widing down a window will create more drag which means that you will use more fuel.
It seems that by the end of the week, you wouldn't use every last scrap of fuel. Its probably still in your tank and the needle doesn't register this amount that accurately.
Alternatively, when you know you only have a small amount of petrol left, perhaps you are more conservative with your driving.
Absolutley no logic at all. In fact it would cost you more.because you are expending more mileage to stop off at the petrol pumps and then go on to work. where as if you only visit the pumps once a week less mileage. Not unless of course you work at the garage. And of course you choose the amount of petrol you require.
Perhaps your tank is narrower at the top and widens out as it goes down therefore when you allow it to run down there is more volume to fill
Your fuel in your tank actually burns faster as it reaches the bottom.
So what i do is fill her up to about 3 quarter of the tank (keep that fuel at a constant) and then keep topping up - keeping the fuel burning at a lower rate.
Are you sure you don't have a petrol leak somewhere on the tank?
The full tank of petrol burning more fuel as it's heavier logic isn't really true, the extra fuel you burn will be so minimal it won't get noticed. The weight of a full tank of petrol doesn't even add up to the weight of a small child. If a tank of petrol adversely effects fuel consumption like that, petrol would not have been an economical fuel. A modern family car weighs in at just over a tonne so about 30KGs strapped to the back is not really going to effect anything.
its not all over your feet is it??
In theory the best thing to do is to add petrol daily but to keep the tank level low so that the weight of the car is less. I wouldn't recommend this because its bad news if you run out!
When adding £5 worth of petrol daily are you sure that you are filling the tank.The missing £25 worth could be accounted for by falling level day after day.
Less weight and fuel price fluctuation.
Simple !
The less weight you carry around, the more MPG you get.
So a tank near empty will use less fuel, than a full tank.
could be as most people say, the weight increase. maybe it has a small leak. petrol can evaporate quicly too.
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