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  • Fuels
    • Quality Fuel Products
      • TOP TIER™ Gasoline
      • BOSS Diesel™
      • Renewable Fuels
    • Fuel Contracting
    • Wholesale Fuels
    • Fuel & Oil Analysis
    • Petro-Card 24
    • Credit Cards
    • Apply for Credit
  • Propane
    • For Your Home
      • Furnaces & Boilers
      • Water Heating
      • Residential Generators
      • Appliances
      • Fireplaces
      • Outdoor Living
    • For Your Farm
      • Grain Drying
      • Irrigation
      • Poultry House Heating & Sanitation
      • Livestock Barn Heating
      • Agriculture Generators
    • For Your Business
      • Construction
      • Forklifts & Material Handling
      • Landscaping
      • Greenhouses & Nurseries
      • Commercial Heating & Cooking
    • Service Programs
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    • Tank Leasing & Maintenance
    • Propane Safety
    • Apply for Credit
  • Oils & Lubricants
    • Motor & Engine Oils
    • Tractor, Transmission & Torque Fluids
    • Greases
    • Industrial Oils
    • Antifreeze & Coolants
    • Other Products
    • Limited Warranty Program
    • Fuel & Oil Analysis
    • Lube Advisor
  • Retail
    • Big O Tires
    • Break Time
    • Jiffy Lube
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    • Apply for Credit
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    • Core Values
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    • Board of Directors
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  • Careers
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    • Corporate Offices
    • MFA Oil Field Locations
    • Break Time
    • Big O Tires
  • Become a Customer
    • Request More Information
    • Apply for Credit

Motor & Engine Oils

Rely on superior performance and extend the life of your engine with high-performing oils.

Take care of everything from your heavy-duty diesel truck to your favorite old car with a full line of conventional and synthetic oils, engineered for all sorts of temperatures and engines. There’s even an oil for the two-cycle engines in equipment like your chainsaw or lawn mower.

Buy from Your Nearest MFA Oil Office
 Work Horse® Heavy Duty Engine Oil SAE 15W-40

Work Horse® Heavy Duty Engine Oil SAE 15W-40

Previously Sold As: MFA Oil Premium Heavy Duty Engine Oil 15W-40

Work Horse Heavy Duty Engine Oil SAE 15W-40 is engineered to provide superior performance and protection for heavy-duty diesel engines operating under all service conditions. It contains only high-viscosity-index lubricating oils, using a unique blend of advanced technology detergents.

Meets or exceeds U.S. and import car and light truck warranty requirements for all diesel and gasoline automotive engines currently in use where an SAE 15W-40 that meets API CK-4/SN, SM or SL is specified.

Available Sizes:
Qt., 2.5 Gal., 55 Gal., 330 Gal., Bulk

Safety Data Sheet

Product Data Sheet
 Work Horse® Heavy Duty Engine Oil SAE 10W-30

Work Horse® Heavy Duty Engine Oil Synthetic Blend SAE 10W-30

Work Horse Heavy Duty Engine Oil Synthetic Blend SAE 10W-30 is one of the most rigorously and extensively tested fluids we have ever developed. Our additive system is supported by over 100 million miles of field testing in various applications and conditions, including: long and short haul fleets; off-road equipment; and commercial and public buses.

This formulation is API CK-4 specified and meets all service categories for all diesel engines, including the capability to provide outstanding performance for older diesel engines, reducing the need to inventory multiple engine oils.

Available Sizes:
Qt., 2.5 Gal., 55 Gal., 330 Gal., Bulk

Safety Data Sheet

Product Data Sheet
 Work Horse® Full Synthetic Heavy Duty Engine Oil SAE 5W-40

Work Horse® Full Synthetic Heavy Duty Engine Oil SAE 5W-40

Previously Sold As: MFA Oil Extended Life Full Synthetic Motor Oil 5W-40

Work Horse Full Synthetic Heavy Duty Engine Oil SAE 5W-40 is specifically designed for use in high-output, low-emission engines including those with exhaust gas recirculation (EGR) using ultra-low sulfur diesel fuel, as well as older engines using low or higher sulfur fuels, aftermarket treatment systems with diesel particulate filters (DPFs), and diesel oxidation catalyst (DOC) treatments.

Available Sizes:
55 Gal., 330 Gal., Bulk

Safety Data Sheet

Product Data Sheet
 Work Horse® Heavy Duty SAE 30, 40 and 50 Engine Oils

Work Horse® Heavy Duty SAE 10W, 30, 40 and 50 Engine Oils

Previously Sold As: MFA Oil Premium Heavy Duty Engine SAE 10W, 30, 40 and 50 Engine Oils

Work Horse Heavy Duty SAE 10W, 30, 40 and 50 Engine Oils are formulated using only high-quality Group II, severely hydrocracked, high-viscosity-index, paraffinic base stocks. They are designed to provide superior engine protection for diesel and gasoline engines.

Work Horse Heavy Duty SAE 10W, 30, 40 and 50 Engine Oils are primarily for both turbocharged and naturally-aspirate diesel engines used in the heavy-duty trucking, mining, construction and farming industries. Check owner’s manual for recommended viscosity and API classification. API CF-2, CF/SG

Available Sizes:
Qt., 2.5 Gal., 55 Gal., 330 Gal., Bulk

Safety Data Sheet – Work Horse Heavy Duty SAE 10W
Safety Data Sheet – Work Horse Heavy Duty SAE 30
Safety Data Sheet – Work Horse Heavy Duty SAE 40
Safety Data Sheet – Work Horse Heavy Duty SAE 50

Product Data Sheet
 Full Synthetic dexos1™ Motor Oils

Full Synthetic dexos1™ Motor Oils

Full Synthetic dexos1™ Motor Oils are advanced technology motor oils which provide the highest level of engine protection available, even under the most severe operating conditions.

Meets or exceeds GM dexos1™ GEN2 specifications for worldwide warranty requirements for all GM automotive gasoline engines currently in use. Available in SAE 0W-20 and SAE 5W-30. Full Synthetic SAE 5W-20 also available as a non-dexos product.

Available Sizes:
Qt., 55 Gal., Bulk

Safety Data Sheet – SAE 0W-20
Safety Data Sheet – SAE 5W-30

Product Data Sheet
 Super HP Synthetic Blend Motor Oils SAE 5W-20 and SAE 5W-30

Super HP Synthetic Blend Motor Oils SAE 5W-20 and SAE 5W-30

Super HP Synthetic Blend Motor Oils SAE 5W-20 and SAE 5W-30 are made from a premium formulation combining synthetic and conventional base oils and a high-performance additive system. This combination provides increased protection for tough driving conditions that put extra stress and demands on your engine. They offer better protection against sludge and varnish formation, keeping your engine cleaner, longer.

Available Sizes:
Qt., 55 Gal., Bulk

Safety Data Sheet

Product Data Sheet
Super HP 10W-40 All Season Motor Oil

Super HP All Season Motor Oil SAE 10W-40

Super HP SAE 10W-40 All Season Motor Oil offers maximum engine protection under extreme temperature conditions by providing superior pumpability and lubrication to all moving parts during cold start-up. At high operating temperatures, Super HP maintains its lubricity and thermal stability to provide a highly efficient lubricating film for engine parts that prevents sludge formation and oxidation thickening. Super HP is specifically formulated for today’s sophisticated, high-revving, hot-running engines. Meets API classification SP and suitable for all earlier model vehicles that require SN, SM, SL or SJ quality motor oils.

Available Sizes:
Qt., 55 Gal., Bulk

Safety Data Sheet

Product Data Sheet
 Synthetic Blend High Mileage Motor Oil SAE 5W-30

Synthetic Blend High Mileage Motor Oil SAE 5W-30

Synthetic Blend High Mileage Motor Oil SAE 5W-30 is engineered to provide both the benefits of synthetic base oils and the benefits of additives tailored to the needs of engines with over 75,000 miles. It provides exceptional performance and utilizes seal restoration additive to help reduce oil consumption in older engines. Safe for use in newer engines that specify API SN + GF-5.

Available Sizes:
Qt., Bulk

Safety Data Sheet

Product Data Sheet
2-Cycle Engine Oil

Air Cooled 2-Cycle Engine Oil

A premium lubricant formulated for two-stroke lawnmowers, chainsaws, trimmers and other two-cycle, air-cooled engines. It can be used in engines that require a fuel oil premix with multiple mix ratios from 16:1 to 50:1.

Available Sizes:
8 oz.

Safety Data Sheet

Product Data Sheet
Protection Plan: Limited Lubrication Warranty

MFA Oil Protection Plan

We proudly stand behind the quality of our products. MFA Oil brand lubricants have been specially formulated with the latest technology to meet and exceed the performance requirements of automotive, agriculture and commercial equipment.

Learn About Our Limited Warranty Program
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