No, Fuel Doctor is not designed or recommended for use in diesel engines. It is specifically formulated for gasoline engines. Diesel engines require different additives and treatments to optimize their performance and fuel efficiency. Using Fuel Doctor in a diesel engine can lead to improper combustion, potential damage to the fuel system components, and inadequate lubrication. It is important to use a fuel additive that is specifically formulated for diesel engines to ensure proper functioning and avoid any potential issues.
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