Valve Protection/ Lead Substitute Gasoline Additive for Off-Road Vehicles OnlyMix ratio 1:1000
| Background: | For years tetraethyl lead was added to gasoline. In the early 1970’s the EPA banned the use of leaded gasoline in new cars. Over the years the Agency has ordered the gradual reduction of lead levels in gasoline. In the 1960’s some gasolines had as much as 3.0 grams of lead per gallon. Allowable levels in the 1980’s dropped to 0.1, causing justified concern from leaded gasoline suppliers and consumers. Finally, in the 1990’s the EPA eliminated all lead in gasoline. | | Discussion: | Lead was added to gasoline to increase its octane rating, which is a measurement of a gasoline’s ability to prevent engine knocking or pinging. The higher the octane rating, the better the fuel’s ability to be heated and compressed before being ignited by a firing spark plug.
Of equal importance but lesser known is the fact that engines built to run on leaded gasoline depend on the wear protection provided by lead oxides and lead sulfates on valve seat surfaces. These protective deposits, or solid lubricants, are only formed through the use of leaded gasolines with adequate lead content.
| | Problems: | The EPA-mandated phaseout of lead has created two major problems affecting vehicles built to run on previous levels of leaded gasoline:
- The elimination of lead content caused a loss of at least two octane numbers requiring other changes in the refinement or blending of gasoline.
| - Engines built for unleaded gasoline differ from those built for leaded fuel. Hardened valve seats or inserts eliminate their dependence on the wear protection provided by lead in gasoline. In critical jeopardy however, are some 70 million engines in the United States designed for the use of leaded gasoline. These engines are subject to valve seat recession, a form of critical wear on the valve seat surfaces of the cylinder head. Valve seat recession results in lost power and fuel economy. Eventually engine failure will occur when the valves no longer seal. At this stage the cylinder head will probably have to be replaced. In the case of extreme valve seat recession, weakening of the casting may result in cylinder head breakage and damage to the engine block.
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| | Solutions: | - The octane problem has been resolved through refining and/or blending processes
- The solutions to the octane problem due to the lead phasedown in leaded gasolines will not solve the problem of valve seat wear in engines designed for leaded gasoline. 407 Valve Pro, however, will.
| | Description: | Valve Pro is for the protection of engines for off-road use designed to use leaded gasoline. This product is formulated to protect engines against valve seat wear and the potential engine failure which can occur as a result of the elimination of lead in gasoline. | | Composition: | At engine operating temperatures, Valve Pro chemistry acts as a protection lubricant between exhaust valves and seats. It prevents direct metal-to-metal contact which would result in higher wear. This unique high temperature protection is maintained under the severest conditions. Valve Pro’s unique chemistry also makes it an excellent gasoline detergent. | | Performance Characteristics: | Valve Pro in unleaded gasoline prevents valve seat wear and recession in all engines with non-hardened valve seats, eliminating the potential for costly engine failure. This includes many automobiles before 1975, many trucks before 1984, and virtually all farm, construction, and marine gasoline engines. Tests have proven valve seat protection equal or superior to that provided by lead. The danger of valve seat recession is greatest at high speeds and loads. However, Valve Pro is good insurance against damage caused by occasional high stress operation.
This product also offers an indirect benefit with its detergency, cleaning the entire fuel system. It will not only keep clean, but will reduce and clean-up deposits in carburetors, fuel injectors and ports. The CRC Carburetor Detergency Test resulted in 99.3% less deposits when treated with Valve Pro. The benefits are clear - longer life, higher fuel economy and dependable operation. | | Uses: | Valve Pro is formulated for exceptionally easy blending with gasoline at a ratio of 1 to 1000, or 0.1%. It is recommended only for off-road vehicles. It is not approved by the EPA for on-road use. Treating unleaded gasoline for use in vehicles equipped with catalytic converters is not recommended as it will ruin the catalyst. | | Applications: | Automobiles (Non-Road) | Construction Equipment | Light/Medium-Duty Trucks (Non-Road) | Inboard & Outboard Boats | Farm Tractors | Motorcycles (Non-Road) | Self-Propelled Combines | Sprayers | Cotton Pickers | Windrowers |
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