• Pails/Drums/Oil

    Heavy Duty Formula Promotes Optimal Engine Performance

    Monolec Two-Cycle Engine Oil (8104) is a heavy duty oil specifically formulated to provide outstanding lubrication for all two-cycle engines, allowing them to run smoother, cooler and more efficiently. Recommended applications include chainsaws, lawn mowers, portable generators, outboard motors, and similar two-cycle applications. It contains premium base oil for greater film strength, better lubricity and higher natural viscosity index than competitive products, and contains LE’s exclusive Monolec® additive for superior wear protection. This special formulation mixes easily with all types of gasoline and ensures optimal engine performance.

    In two-cycle engines, lubrication is achieved by mixing the lubricant with the fuel, and using the fuel coming into the carburetor as a carrier for the oil. Lubrication of the entire engine must be accomplished in a single pass through the system. The fuel/oil/air mixture passes from the carburetor into the combustion chamber in a split second, where high temperatures instantly vaporize the gasoline. The oil, in droplet form, must lubricate all moving parts of the crankshaft, plus the piston and cylinder. If combustion of the oil is incomplete, or byproducts are deposited in the cylinder, serious problems can develop.

  • 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.

  • Drums

    For Heavy-Duty, Long-Drain Service in Railroad Diesel Engines

    Made from highly refined select base oils, LE's Ultra RDE Oil was designed to protect silver alloy bearings in modern high-efficiency diesel engines from wear and contamination. In addition to increasing the engine lifespan, Ultra RDE improves fuel efficiency and significantly reduces oil consumption.

    Lubrication Engineers operates under an ISO 9001 Certified Quality System.

  • Pails/Drums/Oil

    Superior straight-grade, low ash natural gas engine oil

    8945 MONOLEC® Gas Engine Oil is a superior, straight-grade, low ash natural gas engine oil formulated with cutting edge technology that differentiates its performance from other natural gas engine lubricants. Formulated using high-performance base fluids, salicylate additive chemistry for superior deposit control, and outstanding wear reducing additives, including MONOLEC®, LE's exclusive wear- reducing compound. All of these components work together synergistically to greatly decrease friction, minimize wear, remove heat, and keep engine components clean. It has been proven in various engine types, under severe operating conditions.

    Lubrication Engineers operates under an ISO 9001 Certified Quality System.

  • Drums

    High performance straight-grade medium ash engine oils for landfill and 'dirty' gas engines

    These products are high-performance straight-grade medium ash engine oils used for landfill gas pumping engines and generation units. Both are formulated with cutting edge salicylate chemistry which offers superior deposit control and resistance to oil nitration which results in extended lubricant drain intervals. They also contain increased wear control additives, including MONOLEC®, LE's exclusive wear reducing additive, which greatly reduces friction, heat and wear. They have been proven under the severe field performance conditions experienced in these type engine applications. They are also recommended for stationary and mobile engines using sour fuels.

    Lubrication Engineers operates under an ISO 9001 Certified Quality System.

  • 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.