ning
Elite Member
Around here taxed diesel costs about $5.15-5.19 everywhere today (source: gasbuddy).
Mini mart nearby (9 miles away) also sells dyed diesel $0.50 less (I guess they pocket the $0.10 difference in the tax for the bother), so that's $4.69.
Closest Costco sells diesel $4.87.
I have five 5-gallon cans that I fill with dyed diesel occasionally; my truck fill up is typically about 30 gallons. Considering it costs me about $25 in diesel to round-trip to the Costco, it's not worth it to go there to fill the truck (it's also a 45 minute drive). I could send my wife off to work with my tractor cans as she fills up with Gas weekly there, but the last thing she needs to be doing is slinging 50-pound cans of fuel into her car (they seal pretty well so they pretty much don't smell, but that's another matter).
I have a spreadsheet that I can find the break-even point for "is it worth going to Costco" (to fill the truck and cans together vs just the truck at costco and the cans at the mini mart vs fill everything at the mini mart) and only when the Costco first opened and the fuel prices were about a dollar cheaper was it actually a win to go there; the only time I'll buy diesel there is if I happen to drive my truck down there for another reason (like, Home Depot).