LE is your go-to destination for high performance engine oils

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The technology exists to build high-performance engine oils that can withstand conditions and rigors for diesel trucks, passenger cars, light duty trucks and stationary engines. Typically, engine oils are made up of 70 to 90 percent base oil and 10 to 30 percent additives. Lubrication Engineers uses premium quality base oil and best-in-class additive technology to formulate engine oils that maintain their viscosity, keep engine wear to a minimum, and help ensure dependability. LE engine oils are formulated to meet the needs of our industrial customers and in most cases easily exceed the Automotive Performance Institute (API) specifications for performance. We have customers all over the world that use our engine oils and swear by their performance and ability to keep engines protected from wear and running at peak performance.

Monolec® Two-Cycle Engine Oil (LE8104)

Typical Applications: Chainsaws, motorcycles, outboard motors (under 50 hp), portable generators, pumps, snowmobiles (air-cooled engines), and any other two-cycle gasoline engines

Monolec Two-Cycle Engine Oil 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. 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.

 

Monolec®GFS Engine Oil

LE8430, LE8440, LE8450

Typical Applications - Off road diesel engines, Air Compressors

Monolec® GFS Engine Oils are a family of SAE 20 through 50 straight-grade engine oils formulated for extended drain service, primarily in off-road diesel engines. They contain Monolec, LE’s exclusive wear reducing additive, and are specified mostly for engines but are also sometimes used in industrial applications, such as air compressors.

Beneficial Properties

  • Protects against rust and corrosion

  • Long Lasting

  • Exhibits excellent oxidation stability and detergency

  • Delivers longer effective oil life thanordinary engine oil

  • Extends drain intervals

  • Reduces oil consumption

Monolec® Tetra-Syn™ Engine Oil LE8521 - LE8522

Full Synthetic Oil with Premium Additive Package Provides Unparalleled Benefits for Gasoline Engines

Monolec Ultra® Engine Oil

LE8800, LE8130

Typical Applications:  On- and off-road diesel engines, including over-the-road tractor trailers, pickup trucks, construction and mining equipment, farming equipment, and more.

Stationary diesel engines, such as generators and irrigation pumps, Backward compatible for use in older 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.

Beneficial Qualities:

Cost-Saving Service

  • Extends oil drain intervals* with specified filter changes and periodic oil analysis

  • Reduces oil consumption

  • Improves fuel economy

  • Protects against engine wear, extending life

 

  • Premium Performance

  • Protects against deposits, keeping engine parts clean

  • Neutralizes acids generated from oxidation, preventing corrosive damage

  • Prevents thermal degradation, loss of lubricity and engine cavitation with improved aeration control

  • Decreases engine noise

All-Weather Performance

  • Maintains viscosity at high and low temperatures

  • Allows oil flow at extremely cold temperatures

  • Ensures minimal drag during cold startups

  • Effectively lubricates at high temperatures

Greener Technology

  • Specially formulated to meet API CK-4 standards for low emission engines

  • Compatible for use with biodiesel-containing fuels

  • Compatible for use in vehicles equipped with diesel particulate filters

  • Works in conjunction with EGR engines to manage soot and other exhaust contaminants

  • Low SAPS formula minimizes poisoning of SCR systems and particulate filtration traps

Monolec® Natural Gas Engine Oil LE8845

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.

Monolec Ultra® Syn Heavy Duty Engine Oil LE8854 - LE8855

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.

Ultra Railroad Diesel Engine Oil (LE8900)

Typical Applications: Railroad diesel engines

For heavy-duty, long-drain service in modern high-efficiency railroad diesel engines, LE’s Ultra RDE Oil was designed to protect silver alloy bearings from wear and contamination. In addition to increasing the engine lifespan, Ultra RDE Oil improves fuel efficiency, reduces wear and provides a high degree of engine protection. It is formulated with highly refined select base oils and exceeds the standards of EMD railroad engines, GE railroad diesel engines, Bombardier railroad diesel engine, Caterpillar diesel engines, Generation IV and API CD.

Available SAE Grade: 40 (8900)

Monolec® Natural Gas Engine Oil (LE8945)

Typical Applications: Stationary gas engines used for power generation or natural gas pumping operations

Monolec Natural Gas Engine Oil is straight-grade low-ash oil formulated with cutting edge technology that differentiates its performance from other natural gas engine lubricants. It is formulated using high-performance base fluids, salicylate additive chemistry for superior deposit control, and outstanding anti-wear 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. This oil has been proven in various engine types, under severe operating conditions.

 

Monolec® Gear Lubricant

LE703 (SAE80W-90) - LE704 (SAE85W - 140)

Beneficial Qualities

Wear Prevention

  • Provides exceptional wear resistance, ensuring longer gear life and less maintenance expense

  • Possesses high film strength, keeping metal surfaces separated

  • Offers outstanding rust and corrosion resistance

Long-Lasting Reliable Service

  • Provides superior oxidation stability and long life

  • Maintains low operating temps by reducing friction

  • Breaks up foam bubbles as they form

  • Separates readily from water

  • Prevents sludge deposits

  • Extends drain intervals with less make-up between drains

  • Does not affect seals

Versatility

  • Multiviscosity for use in all seasons

  • Delivers exceptional performance in most types of gearboxes

  • Can be used in most differentials and transmissions

Typical Applications

  • Over-the-road and stop-and-go fleets

  • Off-highway equipment transfer cases, overdrive units, oil-lubricated wheel bearings and steering gearboxes

  • Limited slip differentials

  • Rockwell and Eaton axles

  • Heavily loaded industrial gearboxes

  • Any gearboxes that have bronze gears, thrust washers or other parts that require an EP gear oil

  • Worm gearboxes calling for EP gear oils

  • Especially appropriate for machine tools and other precision gearing because low wear rate keeps them within specification longer

LE704 Lincoln paving Company

Lippman Jaw Crusher

Monolec® SYN  Gear Oil

LE9919- LE9920

High-Performance Synthetic Oil Provides Reliable, Long-Lasting Protection for Heavily Loaded Gearboxes

Duolec® Syn Gear Lubricant is formulated with 100 percent synthetic base fluid to ensure excellent high- and low-temperature performance. The synthetic base fluid also provides oxidation stability, which contributes to long lubricant life and a reduction in costly lubricant changeovers.

Duolec Syn Gear Oil provides uninterrupted operation and long service life for expensive gear applications, including heavily loaded gearboxes that are exposed to temperature extremes. With its special blend of clean gear technology additives, Duolec Syn Gear Oil works to prevent deposit formations in high-temperature applications and will not break down over time. The lubricant also provides exceptional low temperature flow properties, protecting gears during the coldest startups.

Beneficial Qualities

Provides Reliable, Long-Lasting Protection

  • Protects costly gears & other assets

  • Ensures uninterrupted operation

  • Promotes long service life for equipment

  • Reduces friction

  • Protects against wear

  • Prevents micropitting or “gray-staining”

  • Maintains high film strength

  • Provides extreme pressure (EP) protection

  • Will not break down over time

  • Can be filtered down to 3 microns with microglass filters without affecting performance

  • Reduces need for costly lube changes

  • Resists foaming

Withstands Extreme Conditions

  • Provides oxidation stability for long lubricant life

  • Prevents deposit formation in high temps

  • Exhibits exceptional low-temp flow properties

  • Can be used for heavily loaded gearboxes

Typical Applications 

Differentials & transmissions in:

  • Over-the-road fleets

  • Heavy-duty rolling stock

  • Stop-and-go vehicles

  • Off-highway equipment

Industrial gearboxes and worm drives that:

  • Call for SAE 75W-90 gear oil (9919)

  • Call for SAE 75W-140 gear oil (9920)

  • Are subjected to low and high temperatures, such as freezer units and paper drums

Full Torque® Diesel Fuel Improver

LE2421 Summer & LE2411 Winter

If you liked our old BTU+ diesel fuel treatment, you will really like our new high-performance Full Torque Diesel Fuel Improvers. Field-tested for several months on the ice roads of Alaska, Full Torque has proven to be a valuable asset for long-haul diesel engine operators fighting to keep their trucks on the road despite harsh environments.

Full Torque is a cetane-boosted, detergent-containing fuel additive formulation that increases power, improves fuel economy, reduces emissions, and provides smoother performance year-round in diesel engines. Full Torque’s cetane booster increases a fuel’s cetane number up to three numbers, resulting in faster ignition time, more power, easier starts and less smoke at startup. This hard-working diesel fuel conditioner is also loaded with special detergents that keep injector systems clean and working at maximum performance, as well as ingredients that protect against wear, water and corrosion. Full Torque has been formulated to work with today’s biofuels, ultra low sulfur diesel (ULSD) fuels, and renewable diesel fuels. It also works with today’s high pressure common rail systems.

 

Dirty Fuel Injectors

Clean Injectors after using Full Torque

Full Torque Summer (2421) & Winter (2411) formulas provide year-round performance

  • Boost cetane number up to three numbers

  • Decrease ignition time and minimize smoke at startup

  • Decrease fuel pump and injector wear with improved lubricity

  • Protect fuel system against rust and corrosion

  • Enhance performance of fuel injectors, including high-pressure common rail systems

  • Eliminate fuel-related smoke

  • Increase fuel economy

L-X® Heavy Duty Chemical Supplement

LE2300

Gasoline fuel treatment protects engines & helps fuel economy.

L-X® Heavy Duty Chemical Supplement (2300) is a combination of oils and chemicals carefully formulated for use in automobiles, trucks and other gasoline engines. It increases power through a more efficient combustion of the fuel, which in turn improves fuel economy.

L-X keeps engines clean and reduces frictional wear by combating carbon, varnish and gum deposits that prevent an engine from operating at maximum efficiency. It also protects engine parts, physically permeating the metal surfaces and adding a sacrificial layer to protect rings, plugs, pistons, valves, carburetors, and fuel injectors from heat, corrosion and acids. This uncanny ability to permeate the microscopic pores found in metal surfaces lends itself to a variety of additional uses

Beneficial Qualities

Keeps engine clean

  • Combats carbon, varnish and gum deposits

  • Cleans existing deposits and prevents future formations

Reduces frictional wear on internal engine parts
 

Reduces corrosive wear

  • Minimizes fuel dilution

  • Keeps dispersed water in suspension for complete removal

Maximizes fuel combustion

  • Increases power

  • Saves fuel

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