mdamerell wrote:
Fun tidbits poking around the internet and some loose math.
If you spent $1,000 on an aux fuel tank upgrade, saved 50 cents on every gallon and got 10 mpg towing it would take you 20,000 miles to recoup your investment.
Diesel (according to Mobile and Shell) has a shelf life of 6 months to a year if keep cool and dry. Add biocides and filtration and it will keep longer.
Average weight for a gallon of diesel is 7.0 to 7.3 pounds depending upon blend.
Untreated #2 diesel Gel point is usually around 17.5 °F (?8.1 °C).
Have a great day :)
I paid $100 for my 40 gal. on craigslist this summer and it has already paid for itself. But, like many others have posted, I did not purchase it to save on fuel costs to but for the luxury of only getting fuel when I want to. I have hauled bulk mulch and gravel with no issues. I just toss a tarp over the tank before loading. Ideally I would have just purchased a larger replacement tank but could not justify the cost for my intended use.