Went to fill up Vicky this evening, first time I've used her in about a month (very naughty), thought I'd fill her up as other than the trip to garage to fix the CV boot I hadn't used her since the return from Panda camp and wanted to see what MPG my eco run had returned.

Went to fill her and it all came flowing out, had to fill her fairly slowly to stop this from happening.

Anyone having similar issues? Not the weather with this heat is it? I'm a bit miffed, as think if I hadn't have got half of it over he forecourt I'd have got over 50MPG on that tank - will have to settle for 49.8 mpg.

Also has similar issues with my Diesel Bravo this weekend just gone, so wondering if its temp related - possibly affecting the pump rather than the car

Jon.

Funny you should ask... -- took me quite a while to fill the Punto, this evening, using a pump I've used regularly, over the last two years, without problems... -- although the Mk3 Panda was fine, last week, when it was equally hot....

homeward said:

Funny you should ask... -- took me quite a while to fill the Punto, this evening, using a pump I've used regularly, over the last two years, without problems... -- although the Mk3 Panda was fine, last week, when it was equally hot....

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Hmmmm, can't be me then. Wouldn't have bothered me if it kept clicking like the Bravo (well it would have but not as much) but loosing the expensive golden nectar is never a fun experience

Most Easterly Pandas said:

Went to fill her and it all came flowing out, had to fill her fairly slowly to stop this from happening.

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Define flowing out, I've had issue with fumes making it constantly click when I try to fill. Also a couple of weeks ago I went to put petrol in, got about 2 litres in and looked down and noticed some of it was dribbling back out of the filler and onto the floor :bang: just had to wiggle the nozzle a bit and back to normal.

Didge3 said:

Define flowing out,

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Down the body work and pooling on the ground

Not as bad as Niagara Falls out of the Bravo though back in Jan when I got covered knee down in Diesel, although Shell coughed up for that one due to their negligence.

Most Easterly Pandas said:

Down the body work and pooling on the ground

Click to expand...

Yeah I had exactly this more or less just before Stanford, If I push the nozzle all the way in some of it usually dribbles out, I generally just don't push it all the way.

(Can we please ignore the terrible innuendoes in this post...)

I too have suffered from NDS ( nozzle dribbling syndrome ), not been a problem recently though, I suppose it's just a combination of how fast the fuel flows and what angle/how far in the nozzle is placed into the fuel filler neck.

See I did a post without any rudies in it

Now if you'll excuse me I just need to go to the garage to get my big end fettled....

I thought I read somewhere that you get a bigger volume of petrol per litre when its cold weather r.ather than when its hot.

Anyway like Didge I just stick it in and dribble and be damned. Then I use the wipes on the forecourt to clean up!

What is innuendo anyway?
Dave

Happened to me 2 months ago.

Aston Martin said:

Happened to me 2 months ago.

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You need to get out more often..

purple haze said:

You need to get out more often..

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never happened to me........ :/

push the thingymabob in all the way and let it blast in full bore.

I thought I read somewhere that you get a bigger volume of petrol per litre when its cold

Correct. You actually more weight (kg) per litre the colder the fuel is as the specific gravity (SG) of most liquids increase when temperature decreases. Water has a specific gravity of 1.0 at around 5 degrees C.

At 15 degrees C petrol has an SG of approx 0.737 (so it would float on water). At 30 degrees, I'd guess it drops to around 0.72 or less.

Your engine actually burns fuel according to weight not volume (ie it burns x molecules of hydrocarbon which is the mass of the fuel, not it's volume). If you bought 40 litres in the winter, it would have an SG of, say 0.75 and weigh 30kgs whereas in summer, the same 40 litres only weighs 28.8kgs, so you're getting 4% fewer flammable molecules than you do in the winter.

Although fuel is loaded onto aeroplanes in litres, the fuel gauges are calibrated in kgs as the engines burn x kg per hour, not x litres per hour (ie they will use more litres of fuel to develop the same power in summer vs the winter). The kg consumption remains the same throughout.

The same with your car. A litre of fuel will get you further in winter than it does in summer, all other things being equal.

so in the summer i should fill up at night?

As petrol is stored in underground tanks at garages won't it be at a constant temperature at the pumps?

In this warmer weather is it better to run with a brimmed tank or a quarter full one?

I suspect whatever we do a quick blast on the open road will negate any advantage gained anyway

FIRECOLOUR.
Were you given an anorak at Christmas or are you just a mine of useful knowledge?

I haven't seen a more technically embellished answer on the forum.
Congratulations.

Snore.......... I was right.
Dave

Were you given an anorak at Christmas or are you just a mine of useful knowledge?

No anorak, I just burn about 10,000 litres of fuel a day in my job so have to know this stuff inside out

firecolour said:

No anorak, I just burn about 10,000 litres of fuel a day in my job so have to know this stuff inside out

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Whats that out of interest?

I used to know loads of crap about fuel, flash points etc, but then left the petroleum industry

Firecolour.
10,000 litres, what engine have you got in your Panda that uses 2,202 gallons a day.
A Centurion tank engine did gallone per mile or the QE2 that did 6 inches per gallon?
Dave