Schaeffer Oil manufactures a variety of synthetic engine oils and natural gas engine oils primarily for heavy-duty diesel and gasoline engines.
Using the right oil based on the work the equipment performs will result in better protection in the long run. Our SynShield™ CK-4/FA-4 Oils deliver performance-based benefits that reflect how you manage your equipment and lubricants.
Our line of gasoline engine oils are specially formulated to outlast commercial grade oils, extend engine life, and improve fuel economy.
Supreme 9000™ 5W-50 Racing Oil
A full synthetic, multi-grade engine oil formulated to reduce friction and wear, increase engine and fuel efficiency, and extend engine life in turbocharged or supercharged engines.
Supreme 7000™ 20W-50 Racing Oil
A multi-grade synthetic plus engine oil formulated to reduce friction and wear, increase engine efficiency and extend engine life in all types of gasoline engines including those that are turbocharged.
Advanced European Performance Oil
Our newest oils designed to meet the specific performance requirements of European vehicles.
Supreme 9000™ Full Synthetic 2-Cycle Racing Oil
Full synthetic oil designed for carbureted, electronic fuel injected (EFI) and direct injection (DFI) 2-cycle engines.
Extreme V-Twin Synthetic Plus 20W-50
Fortified with extra zinc, this highly advanced multi-grade synthetic plus 4-stroke engine oil is designed for V-Twin engines and most motorcycles with a common engine/transmission lubrication system.
Supreme 7000™ Synthetic Plus 2-Cycle Oil
A Para-Synthetic ashless 2-cycle oil specially formulated to meet and exceed the performance needs of today's high performance water cooled two cycle engines that specify the use of a 2-cycle oil that meets NMMA TC-W3.
New & Improved Natural Gas Engine Oils
Synthetic Plus Sour Gas Engine Oil
A superior medium ash Para-Synthetic natural gas engine oil specially formulated for use in medium to high speed, four-cycle gas engines running on landfill gas or sour gas.
Synthetic Plus Compressed Natural Gas (114CNG)
Synthetic Plus CNG Engine Oil SAE 15W-40 is blended from a unique combination of the finest quality severely hydrotreated polyalphaolefin (PAO) synthetic base fluids and severely hydrotreated and hydrocracked Group II Plus available.
Synthetic Plus Natural Gas (114S)
Synthetic Plus Natural Gas Engine Oil SAE 30 & 40 is blended from the finest severely hydrotreated polyalphaolefin (PAO) synthetic base fluids and high viscosity index solvent refined severely hydro-finished 100% paraffin base stocks and available.
Other Engine Oils
Moly Bond X-200 Multi-Grade Engine Oil
A petroleum-based, multi-grade engine oil blended from 100% paraffin base oils and formulated for use in all types of on- and off-highway diesel engines, including the 1998 low-emissions certified engines and the 2002 engines equipped with Exhaust Gas Recirculation (EGR) Systems.