Quote:
Originally Posted by acetone marty
I can buy my acetone in canada for $7.89 per litre
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Wow that's almost $30 a gallon, shoot no, mine's way cheaper when there's 3.785 liters in one gallon it costs me 10 bucks for almost 4 liters and still it's not cheaper in terms of economy.
This is the problem: dumping 3 ounces of that Canadian acetone is costing another 70 cents, say times 10 gallons of fuel that's 30 ounces so 7 dollars.
Then we have to add all the rest of the additives and it wouldn't surprise me if you're not dumping an extra $20 into your tank in this fashion.
So the question I keep throwing around is, does this $20 pay off in the savings, or wouldn't it be as cheap to just put another $20 worth of fuel in the tank and be done with it?
Lets assume 40mpg straight fuel, 10 gallons, $5 a gallon.
Hmmm that's $50 but here we add another $20 so we get 14 gallons x 40 =
560 miles for $70
So then we take the other formula, 10 gallons, 50 mpg, $50 for fuel + $20 for additives, I'll give you the mileage here for the extra ounces of additives which is roughly a quart so 10.25 x 50 =
512.5 miles for $70
What do we want, 40mpg, pay $70 and go 560 miles...
Or 50mpg, pay $70 and only go 512.5 miles...
That's the whole point of the exercise is fuel economy.
Miles per gallon is just that, but Fuel economy is miles for the dollar, and if it costs more to go the same distance then it is not feasible economically speaking.
I did want to add, one-time expenses are not calculated the exact same way and in that sense a one-time expense can be a lot higher but it also has to be figured (over the expected life of the car vs. Blue book value and maybe one or two other things).
So unfortunately we have to do the math, or it doesn't work.