Some cars will be fuelled more agressively than others for the weight advantage, so they may have just enough to finish the race (according to their calculations) some may race with more conservative fuel loads just to be cautious or so that if they wish they can really push their engines near the end of the race (as some cars will have engines with no rev limits next year) without having to worry about running out of fuel, before refuelling was allowed there would always be a few drivers who were driving at much lower revs so that they wouldn't run out of petrol, being caught by those that had plenty left. Should make it much better to watch, and none of this "he's officially in #th place, but after the pit stops he should be in #th place" just good simple racing.
Plus of course some engines might just be more effecient than others, dare we even think of the possiblity of an F1 car with "one of those" engines in a few years?
Some cars will be fuelled more agressively than others for the weight advantage, so they may have just enough to finish the race (according to their calculations) some may race with more conservative fuel loads just to be cautious or so that if they wish they can really push their engines near the end of the race (as some cars will have engines with no rev limits next year) without having to worry about running out of fuel, before refuelling was allowed there would always be a few drivers who were driving at much lower revs so that they wouldn't run out of petrol, being caught by those that had plenty left. Should make it much better to watch, and none of this "he's officially in #th place, but after the pit stops he should be in #th place" just good simple racing.
Plus of course some engines might just be more effecient than others, dare we even think of the possiblity of an F1 car with "one of those" engines in a few years?