Pumping petrol - is pumping slower better?

wez130 said:
apparently it's best to fill up on a cold morning when petrol / diesel is denser, therefore you can fit more in your tank, it was also mentioned that pumping slower reduces air in the tank too so that you can fit more in the tank, however, you wouldn't get more petrol for say £20 wether you pump slow or fast.
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Surely if you filled it up to that extent because of denser petrol, as soon as the weather warmed up it'd all just get burped out of the breathers?
 
Mohinder said:
Surely if you filled it up to that extent because of denser petrol, as soon as the weather warmed up it'd all just get burped out of the breathers?
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by the time tyou have left the petrol station and drove a few hundred metres, you would have made enough room for the expansion of a few mm of petrol :D
 
Mohinder said:
Surely if you filled it up to that extent because of denser petrol, as soon as the weather warmed up it'd all just get burped out of the breathers?
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Petrol pumps at petrol stations are temperature regulated, they are far to smart to allow people to get more petrol than they pay for!
 
Mohinder said:
Surely if you filled it up to that extent because of denser petrol, as soon as the weather warmed up it'd all just get burped out of the breathers?
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Filled my R1150GS up at 6.00am to the brim in the summer a few years ago as I was going for a good long run out. The O/H rang to call back home for something or other and I left the bike in the sun. When I went back out to it the tank was whistling and like a gimp I opened it up.:eek::eek::eek:The petrol overflowed all over my tank, engine and seat as the mix of the sun and hot engine had caused it to expand. Pooped myself!:D
 
the tightness of some people on here is jaw dropping, there are probably a hundred better ways to save 10p than arseing about lifting up the petrol pump cable to get the last drop, filling up on a cold day and squeezing the petrol slowly.

I met a guy recently who boiled a full kettle once a day and put the contents in a flask and then used this water whenever he wanted a cup of tea/coffee. He reckoned it was saving him enough money a year to tax and insure his car.

Maths (guesswork so bear with me)
boiling full kettle once = 25p, boiling cup full of water 5 times = £1

75p x 365 = approx £250pa
 
Hedge said:
For the small difference, i would rather be in, out, and back on the road instead of standing for ten minutes while my fingers go numb!
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We're talking about petrol here, not dogging.

@ OP: Does it really matter even if it does make a difference it would be minimal.
 
Muffin` said:
Is that how mch it costs? :eek:
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I have no idea I was just guessing some figures for the sake of the example. If he really pays his tax/insurance then it must be somewhere close. I have also seen this money saving tip in a newspaper in an article on how to beat the credit crunch

*disclaimer* I boil my kettle where and when I want....I'm the boss of me
 
VonClinkerhofen said:
the tightness of some people on here is jaw dropping, there are probably a hundred better ways to save 10p than arseing about lifting up the petrol pump cable to get the last drop, filling up on a cold day and squeezing the petrol slowly.

I met a guy recently who boiled a full kettle once a day and put the contents in a flask and then used this water whenever he wanted a cup of tea/coffee. He reckoned it was saving him enough money a year to tax and insure his car.

Maths (guesswork so bear with me)
boiling full kettle once = 25p, boiling cup full of water 5 times = £1

75p x 365 = approx £250pa
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If your 3KW kettle takes 40 mins to boil you might be close to 25p.

In reality its less than 1 penny assuming 1 minute boil and 15p / KWh.
 
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