Ok, so I'll do all the maths, first I'll find out how much 1 gallon US gallon is compared to a UK gallon:
1 gallon [US, liquid] = 0.832 674 184 629 gallon [UK]
UK gallons to liters:
0.832 674 184 629 gallon [UK] = 3.785 411 784 liter
so 1 US gallon is 3.78 liters
Average price of fuel in my postcode area per liter:
Unleaded 107.0p Diesel 111.6p
so for 1 US gallon I would pay over here in my diesel van:
£4.21
So £4.21 converted into $$$ is:
$8.23
So we pay:
$8.23 per US gallon for our diesel vehicles compared to your $3 per US gallon
I hope you know realise how expensive it is here for fuel compared to the US. But most of us use Vans with Diesel engines here for our work. My van is a 2.0ltr HDI and is very quck even with a tonne onboard and will do 40 miles per UK gallon. And I hope my maths were right, because if there not I'm going to get alot of stick!!! Luke
That post looks familiar. Wonder where I've seen it before

Although I'm sure that your maths are probably right Luke, there are other issues that come into play as well. The comparisons look horrific but it must be realised that both economies have evolved around there relative fuel prices. If you suddenly transplanted UK diesel costs into the US economy it would be instant disaster and likewise, if the opposite happened, it would be like celebration time for the UK (at first anyway) and we would probably start frying our chips with diesel

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One slightly hidden advantage that we have in the UK over out American cousins is that higher oil prices don't hit us as hard in many ways. Because most of the price we pay for diesel is in taxation, an oil price rise is vastly watered down. However, in the USA which has very low fuel taxes, oil price rises are even more apparent on the forecourts than they are here. Undoubtedly, this one factor could lead to a sharper economic downturn in the USA than here in the UK. Another factor is that in the USA longer driving distances are much more part of the culture - not least due to the huge land mass involved. Bear in mind that if you really set your mind to it, you can drive from one end of the UK to the other in one, very long driving day. You couldn't hope to do that in many USA states never mind the USA itself (no wonder they have so many internal flights).