this is the most interesting product i have ever used. it is made in Montana by HUTERITES from corn. PEDEE GLYCHOL come in 4 typesof uses. they have an oil additive, when added to your oil, it always looks fresh oil. in fact you can run the same oil for 50k, they due recomend oil filter change as required. i have used it in many of my new engine builds, the engines are very quite. the fuel additive is real good. it has oxy clean base. there is no carbon in engine and emissions are next to none. gas mileage is in 60 plus range in most applications. there grease is real good. it seems that nothing wears out with grease. they have a spray that is like wd40 that fixes everthing. i serios you have to try this product.