But having said that , i do think this is a worthy thread .
I have just been pondering on fitting my 250 back in the van in place of the 350 , i have been getting home with the region of 150 L left for some time now , dont quite know why as i dont do less than before , took out 350 today and did 10.30 until 3.30 and got home with pretty much bang on 175 L