Niagara Gazette — The deposits that build up on the inside of the fuel delivery system are the result of varnish deposits from fuel flow. These tough deposits can only be removed by applying equally tough, aggressive cleaning agents (much tougher than those found in spray cans for a few bucks). Carbon buildup is the result of unburned gasoline that forms a rock-hard deposit on the inside of the engine where fuel flows. As more gasoline soaks into the carbon and combustion fire hardens it, the more difficult it is to remove from the inside of the engine. The only way to remove such buildup is to soak it with industrial grade cleaners in order to dissolve it and blow it out the tail pipe. Again, such chemical strength is not found in a cheap spray can. Only a professional fuel system cleaning can clean fuel delivery systems effectively. During a professional fuel delivery/carbon cleaning, an industrial grade cleaner is injected into the fuel system through the fuel rail or intake manifold while the engine is running. This process cleans the rail, intake plenum, injectors, valves, cylinder head/s and piston tops. Then a high grade cleaner is added to the fuel tank to clean the fuel lines, pickup assembly, screen, and pump.
• ENGINE OIL ADDITIVES: Years ago I “slapped the gauntlet” to companies that produce lubricant enhancers. My challenge? Present to me solid, scientific proof that their elixirs really do lengthen the life of an internal combustion engine. What do I get? Countless testimonial letters from people who claim they have run their engines dry of oil. Then, in response to an article I wrote for PC World, I got an email from a reader who suggested I view a website that offers scientific proof. Not surprising the site presented more personal testimonies reminiscent of late night infomercial programming.