Lubriguard GEO Premium Low Ash Oils are natural gas engine lubricants formulated with a balanced and field-proven low ash additive system. They provide excellent deposit, sludge and wear protection during high stress service. The base stocks and additive package provide excellent dispersancy and high temperature detergency to reduce deposit formation due to nitration and to ensure minimal carbon and ash deposits during service. Lubriguard GEO Premium Low Ash Oils TBN retention helps fight the formation of organic acids in the crankcase.