backstory is that i try to fill up my tank more when gas prices are at a low and less as prices go up to make my long term average cost per gallon lower.
now given current events, and empirical reality, gas has only been going up and will continue to go up. we could assume different curves(only constraint being that price per gallon goes up as time goes forward), but if you buy your gas now you will spend less money then you have if you bought it tomorrow, day after, or week down the road. my estimate is that it will be month minimum before it gets cheaper.
now that I have put this out there into the world you should fill up asap, I already filled up before making this post and other people will come up with this idea independently of me.
I just think the timeline is to long to go and honestly I can go weeks but I use my care incredibly sparingly so im not sure your usage that can last that long but most folks I know who commute to work in one have to do it every week. Now im also in an area with a lot of nuclear and wind power and we are ramping on solar.
yeah its crazy if someone goes through a tank a week they should get every jerry can and fill it up and maybe even buy more to avoid paying when gas hits 5 dollars a gallon on the east coast for the longest they possible can, but i doubt people in apartments want to have gas lying around either in the car or trunk of their car.
but electric is definitely a different paradigm. id probably suggest getting solar before shipping barges start running out of fuel. if you get solar then your not gonna be pulling from the grid as much