• Pails/Drums/Oil

    Extended-Drain CK-4 Oil Offers Ultimate Package of Performance & Protection for Diesel Engines

    Monolec Ultra® Engine Oil provides exceptional performance and extended-drain service for on- and off-road diesel engines, including stationary engines. It has been formulated to exceed API’s CK-4 technology standards focusing on engine wear protection, oxidation stability, shear stability, resistance to aeration, and compatibility with low emission engines. With its superior formulation of select base oils and Monolec®, LE’s exclusive wear-reducing additive, Monolec Ultra offers dependable all-weather performance, reduces unscheduled downtime, and helps fleets achieve costs savings.

  • Pails/Drums/Oil

    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.



    Lubrication Engineers operates under an ISO 9001 Certified Quality System.

  • Pails/Drums/Oil

    A full synthetic SAE 5W-20 engine oil with premium additive package for passenger cars and light duty trucks equipped with gasoline engines

    To provide the best protection for your car’s engine without sacrificing performance, endurance and efficiency, look no further than LE’s new Monolec® Tetra-Syn™ Engine Oil. LE has harnessed the latest technology and knowledge to formulate this high-quality, high-performance, proprietary synthetic engine oil for gasoline engines.

    LE’s Monolec Tetra-Syn Engine Oil 8521 exceeds the minimum standards set by American Petroleum Institute (API), providing the ultimate combination of performance, protection, endurance and efficiency. It is a best in class 100 percent synthetic gasoline engine oil, and the secret to its superiority is the proprietary additive package designed to deliver resource-conserving fuel economy, protect emissions systems, keep engines clean and keep deposits to a minimum.

    Whether you are a car enthusiast or the manager of a fleet of gasoline engines, you’ll appreciate Monolec Tetra-Syn Engine Oil’s ability to keep your engines running for longer periods while safely extending the time between oil changes.

    Lubrication Engineers operates under an ISO 9001 Certified Quality System.

  • Pails/Drums/Oil

    A full synthetic SAE 5W-30 engine oil with premium additive package for passenger cars and light duty trucks equipped with gasoline engines

    To provide the best protection for your car’s engine without sacrificing performance, endurance and efficiency, look no further than LE’s new Monolec® Tetra-Syn™ Engine Oil. LE has harnessed the latest technology and knowledge to formulate this high-quality, high-performance, proprietary synthetic engine oil for gasoline engines.

    LE’s Monolec® Tetra-Syn™ Engine Oil 8531 exceeds the minimum standards set by American Petroleum Institute (API), providing the ultimate combination of performance, protection, endurance and efficiency. It is a best in class 100 percent synthetic gasoline engine oil, and the secret to its superiority is the proprietary additive package designed to deliver resource-conserving fuel economy, protect emissions systems, keep engines clean and keep deposits to a minimum.

    Whether you are a car enthusiast or the manager of a fleet of gasoline engines, you’ll appreciate Monolec Tetra-Syn Engine Oil’s ability to keep your engines running for longer periods while safely extending the time between oil changes.

    Lubrication Engineers operates under an ISO 9001 Certified Quality System.

  • LE Drums & Pails

    Extended-Drain CK-4 Oil Offers Ultimate Package of Performance & Protection for Diesel Engines

    Monolec Ultra® Engine Oil provides exceptional performance and extended-drain service for on- and offroad diesel engines, including stationary engines. It has been formulated to exceed API’s CK-4 technology standards focusing on engine wear protection, oxidation stability, shear stability, resistance to aeration, and compatibility with low emission engines. With its superior formulation of select base oils and Monolec®, LE’s exclusive wear-reducing additive, Monolec Ultra offers dependable all-weather performance, reduces unscheduled downtime, and helps fleets achieve costs savings.

  • Drums

    Multigrade Viscosity, Low-Ash Oil Provides Long-Lasting, All-Weather Protection for Natural Gas Engines

    Formulated for use in stationary and mobile natural gas engines, Monolec® Natural Gas Engine Oil (8845) is made from a synergistic blend of high-performance base fluids, salicylate detergent chemistry and superior wear-reducing additives. The resulting low-ash, engine-cleaning blend provides the perfect long-lasting wear protection without the accumulation of heavy deposits.

    Monolec 8845 is a proven multigrade performer in various engine makes and models, even under severe operating conditions. It can be used with sparkplug-ignited engines, including mobile applications such as buses with converted Cummins and Detroit diesel engines.

  • Pails/Drums/Oil

    Broad-Range Synthetic Diesel Engine Oil Pays for Itself with All-Weather Performance, Wear Protection and Fuel Economy

    Monolec Ultra® Syn Heavy Duty Engine Oil is a multiviscosity SAE 5W-40 synthetic oil for diesel engines that delivers outstanding year-round performance, fuel efficiency and extended drains. It has been formulated to exceed API’s CK-4 technology standards focusing on engine wear protection, oxidation stability, shear stability, resistance to aeration, and compatibility with low-emission engines. With its synthetic base oil and exclusive additive package, it provides reliable lubrication – even in low temperatures – without the shear stability and viscosity problems of conventional diesel engine oils. Its high viscosity index indicates less change in viscosity over a broad temperature range.

    A primary advantage of 5W-40 vs. 15W-40 engine oil is better fuel economy. In a controlled lab setting, GM 6.5L dyno testing showed a 1.5-1.6% fuel economy improvement. In addition, lowviscosity oils achieve flow quickly during cold startups. Most engine wear occurs within the first two to five minutes of starting. However, conventional low-viscosity oils have not always provided adequate oil film at operating temperatures, which resulted in increased wear and made it difficult to obtain OEM approvals. Monolec Ultra Syn eliminates this problem with its ability to flow quickly in cold weather and maintain viscosity at operating temperatures. It also meets all major OEM approvals.

    Monolec Ultra® Syn Heavy Duty Engine Oil lubricates parts faster, prevents wear during operation, and decreases fuel consumption – making it the smart choice for fleet managers and owner operators who want better fuel economy and reliable low temperature performance.

  • Pails/Drums/Oil

    Offers Dependable, Heavy-Duty Performance in Diesel Engines

    Monolec® Engine Oil provides excellent service for engines in mobile equipment and stationary generators. With its formulation of select base oils, shear-stable viscosity improver and Monolec®, LE’s exclusive wear-reducing additive, Monolec Engine Oil offers increased fuel efficiency, dependable performance and wear protection.

  • Pails/Drums/Oil

    Offers Dependable, Heavy-Duty Performance in Diesel Engines

    Monolec® Engine Oil provides excellent service for engines in mobile equipment and stationary generators. With its formulation of select base oils, shear-stable viscosity improver and Monolec®, LE’s exclusive wear-reducing additive, Monolec Engine Oil offers increased fuel efficiency, dependable performance and wear protection.