PETRONATE HL is an all-natural medium molecular weight first intent sodium sulfonate recommended for use in soluble oils and semi-synthetic fluids. It imparts all the benefits of natural sodium sulfonate and exhibits improved emulsion properties compared to commercially available synthetic products. PETRONATE HL also possesses the inherent corrosion protection characteristics expected from a medium molecular weight high quality sodium sulfonate. Nominal dosages would range from 1.0 to 10.0 wt. % of the finished soluble oil or semi-synthetic fluid. PETRONATE HL is compatible with most mineral base oils, white oils, and synthetic base stocks. It can be used in formulations to provide benefits like emulsion stability, corrosion protection and improved performance.