Perhaps Oil Honey and Fuel System Cleaner Can Reduce Our Pollution

   If oil honey can prevent a car from throwing a cloud of smoke, and if fuel system cleaner can reduce emissions, can they reduce pollution not only from the wildly polluting cars, but also from the average vehicles on the road?

   With all the discussion of ways to reduce pollution, I haven't heard this suggestion. I wonder if any study has been done to determine what percentage of our pollution we could rid ourselves of if we all used these two additives, or if the worst-polluting cars on the road all used them.