Big tractor - CUT. UK differences

[edski]

</font><font color="blue" class="small">( I was under the impression that petrol [gas] requires more refining than diesel so therefor it should cost more. )</font>

I've also heard it argued that with additional distillation, what was diesel may come off in several fractions that generate more $ for the refinery. Kinda like parting out a car.