Gentlemen, my post may lose some of its credibility, or perhaps gain some when I tell you BlueSky CleanAir, Inc. is my company.
That said I would like to let you know that this product has been tested and tested by California Environmental Engineering for The California Air Resources Board, Saybolt labs, Herguth Labs, individuals, truck and bus fleets around the country. Outside the country, Costa Rica is using is for some of their public busing fleets, some corporations are using it down there and it has been tested by Mexico's, Pemex Oil company. Now, non of that means anything because you have not tried it for yourselves.
Customers are passing the California Smog test, saving money on Gas and wear and tear. How does it work? I sure can't tell you but then the engineers at Cheveron can't tell you how their products work.
Go to the website, learn more about the product and read the testimonials...they are not manufactured and . BlueSky does indeed work.
As far as a product working in both Diesel and Gasoline, this does. It increases Cetane, not Octane.