A Technologically Superior Single Grade Engine Oil Designed for Diesel Engines
LE's Monolec® GFS Engine Oils are a family of SAE 20W through 50 straight-grade engine oils formulated for extended drain service in on-road, off-road and marine diesel engines. They contain Monolec®, LE's exclusive wear-reducing additive, which has proven to reduce wear by 24.2% in radioactive wear tests.
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