Microlon CL-100 was developed primarily for use in aircraft engines (accepted in 1979 by the FAA for use in aircraft engines of up to 1000 cubic inch displacement, but is also considered the premium automotive treatment. Like its counterpart, Microlon Engine Treatment, this formulation is thoroughly compatible with fuels and oils. Due to its chemically more sophisticated ingredients, CL-100 forms an exceptionally hard film that is a necessity when dealing with dramatic temperature variations, harsh operating conditions and high performance demands. CL-100 also provides maximum protection against corrosion during periods of non-use.