Ordered a quart some weeks ago and have been using it in 2 vehicles. 92 Olds Silhouette (the plastic anteater), 3.8, 237K. 98 Mercury Sable, 3.0, 155k.
The van, my daily driver, has consistently averaged 20mpg most of its life. The Sable, the wife's daily driver, typically got 23mpg.
The van now consistently gets 22+mpg. Had one tankful with no improvement, one with a high of just under 25mpg. The van had never done that well before (25), even on a trip. The last 2 tankfuls were 23+ each.
The Sable seems to be much more variable, either showing no improvement at all on a couple of tanks, to results of 5 - 20% improvement. Her results are usually in the 5 - 7% range overall. But the wife's driving conditions are much more variable as well. Much more city driving, with attending interstate gridlocks.
The van is NOTICEABLY smoother running since using the additive. Very noticeable. Sable feels about the same.
Paid 38.20 including shipping for the quart of CA-40. If I only used it in my van, and if I continue to get 22mpg or more, I calculated a NET savings of about $155, based on $3/gal gas. Gas prices in our neck of the woods have been all over the map. As high as $3.49 recently, but now have dropped to as low as $2.81. Go figure.
Some observations. The additive is a thick brown liquid, approaching the consistency of something like STP. To my nose, it has a faint sweet odor to it. It does settle out, meaning after sitting for a day or so, the liquid will be lighter on top, darker on the bottom. Shake well before pouring.
Received a graduated plastic syringe with the order, but I don't like using it. Too difficult to draw it into the syringe. Instead I pour it out into a small graduated measuring cup, then put it into a small glass jar with a tightly sealing lid with a couple if ounces of gas. Shake like mad to get it to dissolve, then dump it in the tank.
The original recommendations were for one ounce to 18 - 20 gallons of fuel. Just recently I noticed that their site has changed that to 15 - 20 gallons if fuel. I always go for the highest dilution ratio of one ounce to 20 gallons gas.
Unless or until my results degrade, or the price of the additive goes too high, think I will probably continue using it in the future. Spending $38 to save $155 is a no brainer for me and my budget.
The van, my daily driver, has consistently averaged 20mpg most of its life. The Sable, the wife's daily driver, typically got 23mpg.
The van now consistently gets 22+mpg. Had one tankful with no improvement, one with a high of just under 25mpg. The van had never done that well before (25), even on a trip. The last 2 tankfuls were 23+ each.
The Sable seems to be much more variable, either showing no improvement at all on a couple of tanks, to results of 5 - 20% improvement. Her results are usually in the 5 - 7% range overall. But the wife's driving conditions are much more variable as well. Much more city driving, with attending interstate gridlocks.
The van is NOTICEABLY smoother running since using the additive. Very noticeable. Sable feels about the same.
Paid 38.20 including shipping for the quart of CA-40. If I only used it in my van, and if I continue to get 22mpg or more, I calculated a NET savings of about $155, based on $3/gal gas. Gas prices in our neck of the woods have been all over the map. As high as $3.49 recently, but now have dropped to as low as $2.81. Go figure.
Some observations. The additive is a thick brown liquid, approaching the consistency of something like STP. To my nose, it has a faint sweet odor to it. It does settle out, meaning after sitting for a day or so, the liquid will be lighter on top, darker on the bottom. Shake well before pouring.
Received a graduated plastic syringe with the order, but I don't like using it. Too difficult to draw it into the syringe. Instead I pour it out into a small graduated measuring cup, then put it into a small glass jar with a tightly sealing lid with a couple if ounces of gas. Shake like mad to get it to dissolve, then dump it in the tank.
The original recommendations were for one ounce to 18 - 20 gallons of fuel. Just recently I noticed that their site has changed that to 15 - 20 gallons if fuel. I always go for the highest dilution ratio of one ounce to 20 gallons gas.
Unless or until my results degrade, or the price of the additive goes too high, think I will probably continue using it in the future. Spending $38 to save $155 is a no brainer for me and my budget.