I buy my CA40G direct from the co's website. I get a quart at $35. + about $7 shipping. In my H3 I use 1.5oz of product. So 1 quart is enough to treat 21 fillups from empty. So its costing me $2 of product per tankfull. That $2 is netting me what about 75 miles per tankful. You dont need to be a math whiz to see the savings are tremendous.
Its important to note that your "style" of driving likely differs from mine. In the 74 miles one way that I drive I face just 2 small hills to and from work, the rest is virtually flat. I leave for work @ non-rush hour times. I drive only at the posted speed limits having seen first hand through loss of life and thousands of tickets on the Jersey Highways what happens to those who dont. And I almost never pass anyone driving slightly slower than me, instead I just slow a little too and mellow out behind them til they turn off ahead at some point.
I'm never really in a rush.
That said you may not see the gains I have, but you'll certainly do MUCH better than you're doing now. If you buy the product by the gallon instead of by the quart it'll cost you less (only $28.75 per qt.) I only have the 2 vehicles, and I only go to work twice a week (Fire Dept.), so 1 qt. is plenty for me, but if your household has more vehicles, or more travelling to do, a gallon at $115. is a bargain. Or maybe split it with a neighbor/relative?
I stand by my testimonial of the product. It does EXACTLY what it claims to do and in some cases works even better!
Points of fact:
I don't work for the company, I'm not a sales person, I don't get discounts for referrals or any compensation whatsoever for mentioning the product. I'm a customer and have been for over a year and unless someone makes a better product I will continue to be a customer for ever.