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Gasoline Engines

Gasoline Engines

Schaeffer's API SP engine oils work for all gasoline engines.

Upgrade Your Engine's Protection with Schaeffer’s SP Engine Oil

As the automotive industry continues to evolve, so too must the lubricants that power our vehicles. That's why we're excited to introduce you to the latest motor oil specification: API SP.

Developed in response to automakers' requests for enhanced engine protection, API SP is designed specifically for turbocharged gasoline engines. These advanced engines are susceptible to a phenomenon known as Low-Speed Pre-Ignition (LSPI), which can lead to costly engine damage if left unchecked.

Schaeffer’s SP engine oils have been formulated to mitigate the effects of LSPI, providing your engine with the robust protection it needs to perform at its best. But the benefits don't stop there. These oils are also backward compatible with older API specifications, ensuring they'll work seamlessly in both newer and older vehicles.

By upgrading to API SP, you'll enjoy the peace of mind that comes with knowing your engine is safeguarded against the unique challenges of today's turbocharged technology. Plus, with the added assurance of backward compatibility, you can be confident that your motor oil will continue to deliver reliable performance, no matter the age of your vehicle.

Testing shows that Schaeffer’s SP gasoline engine oils offer: 

  • 7% oxidation improvement.
  • 20% iron wear reduction (average).
  • 50% less chain wear as shown in the Sequence X test, which runs for 216 hours.

Don't settle for anything less than the best for your engine. Upgrade to API SP motor oil and experience the difference in power, efficiency, and long-lasting protection. See how Schaeffer's API SP oils can take your driving experience to new heights.

Bulk discounts on multiples of one item to save even more. Yes, bulk discounts are added to Sale items pricing!

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  • Schaeffer 9016-005 Supreme 9000 Synthetic 0W-16 | 5-G

    Schaeffer 9016-005 Supreme 9000 Synthetic 0W-16 | 5-G

    Schaeffer Mfg Co.

    $396.36
    New item! Schaeffer's 9016 Supreme 9000 Full Synthetic Gasoline Engine Oil 0W-16 (5-Gallons) is specially engineered with the finest quality synthetic base oils and proven friction modifiers. With an advanced performance additive package...
    $396.36
    Qty in Cart: 0
    Quantity:
    Price:
    $396.36
    Subtotal:
  • Schaeffer 9016-012 Supreme 9000 Full Synthetic Gasoline Engine Oil 0W-16 (12-Quarts)

    Schaeffer 9016-012 Supreme 9000 Synthetic 0W-16 | 12-QTS

    Schaeffer Mfg Co.

    $285.58
    New item! (Yes, we know the images are for 0W-20 but the packaging is the same.) Schaeffer's 9016 Supreme 9000 Full Synthetic Gasoline Engine Oil 0W-16 (12-Quarts) is specially engineered with the finest quality synthetic base oils and...
    $285.58
    Qty in Cart: 0
    Quantity:
    Price:
    $285.58
    Subtotal:
  • On Sale
    Schaeffer 9005-006 Supreme 9000 Full Synthetic Gasoline Engine Oil 0W-20 (6-Gallons)

    Schaeffer 9005-006 Supreme 9000 Synthetic 0W-20 | 6-GC

    Schaeffer Mfg Co.

    Now: $428.92
    Was: $449.86
    Save 10% when you buy 3! (Yes, we know the image is for the 5W-30, but it's the same packaging!) Schaeffer's 9005 Supreme 9000 Full Synthetic Gasoline Engine Oil 0W-20 (6-Gallons) is specially engineered with the finest quality of...
    Now: $428.92
    Was: $449.86
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $428.92
    Was: $449.86
    Subtotal:
  • On Sale
    Schaeffer 9004-006 Supreme 9000 Full Synthetic Gasoline Engine Oil 5W-20 (6-Gallons)

    Schaeffer 9004-006 Supreme 9000 Synthetic 5W-20 | 6-GC

    Schaeffer Mfg Co.

    Now: $428.92
    Was: $449.86
    Save 10% when you buy 3! (Yes, we know the image is for the 5W-30, but it's the same packaging!) Schaeffer's 9004 Supreme 9000 Full Synthetic Gasoline Engine Oil 5W-20 (6-Gallons) is specially engineered with the finest quality of...
    Now: $428.92
    Was: $449.86
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $428.92
    Was: $449.86
    Subtotal:
  • Schaeffer's 5540 Extreme Marine 4-Stroke Inboard Outboard 20W-40 (12-Quarts)

    Schaeffer 5540 Extreme Marine 4-Stroke I/O 20W-40 | 12-QTS

    Schaeffer Mfg Co.

    $320.51
    NEW ITEM Save 10% when you buy 4! Schaeffer's 5540 Extreme Marine 4-Stroke Inboard Outboard 20W-40 (12-Quart Case)  This is a premium quality, multi-grade 20W-40 FULL SYNTHETIC engine oil. It is specially formulated to reduce friction...
    $320.51
    Qty in Cart: 0
    Quantity:
    Price:
    $320.51
    Subtotal:
  • Schaeffer 5540 Extreme Marine 4-Stroke Inboard Outboard 20W-40 (5-Gallons)

    Schaeffer 5540 Extreme Marine 4-Stroke I/O 20W-40 | 5-G

    Schaeffer Mfg Co.

    $400.10
    NEW ITEM Save 10% when you buy 3. Schaeffer's 5540 Extreme Marine 4-Stroke Inboard Outboard 20W-40 (5-Gallon Pail)  This is a premium quality, multi-grade 20W-40 FULL SYNTHETIC engine oil. It is specially formulated to reduce friction...
    $400.10
    Qty in Cart: 0
    Quantity:
    Price:
    $400.10
    Subtotal:
  • Schaeffer 5530 Extreme Marine 4-Stroke Inboard Outboard 10W-30 (5-Gallons)

    Schaeffer 5530 Extreme Marine 4-Stroke I/O 10W-30 | 5-G

    Schaeffer Mfg Co.

    $408.72
    NEW ITEM Save 10% when you buy 3.  Schaeffer's 5530 Extreme Marine 4-Stroke Inboard Outboard 10W-30 (5-Gallon Pail)  This is a premium quality, multi-grade 10W-30 FULL SYNTHETIC engine oil. It is specially formulated to reduce...
    $408.72
    Qty in Cart: 0
    Quantity:
    Price:
    $408.72
    Subtotal:
  • Schaeffer's 5530 Extreme Marine 4-Stroke Inboard Outboard 10W-30 (12-Quarts)

    Schaeffer 5530 Extreme Marine 4-Stroke I/O 10W-30 | 12-QTS

    Schaeffer Mfg Co.

    $320.51
    NEW ITEM Save 10% when you buy 4!  Schaeffer's 5530 Extreme Marine 4-Stroke Inboard Outboard 10W-30 (12-Quart Case)  This is a premium quality, multi-grade 10W-30 FULL SYNTHETIC engine oil. It is specially formulated to reduce friction and...
    $320.51
    Qty in Cart: 0
    Quantity:
    Price:
    $320.51
    Subtotal:
  • Schaeffer's Break-In Oil SAE 30 (5-Gallons)

    Schaeffer's 108 Break-In Oil SAE 30 | 5-G

    Schaeffer Mfg Co.

    $337.77
    Save 10% when you buy 4! Schaeffer's 108 Break-In Oil SAE 30 is a fully formulated, balanced, high zinc engine oil. This Break-In oil contains 1650-2250ppm of Zinc and 1650-2250ppm of Phosphorus. It is designed to provide excellent wear control to...
    $337.77
    Qty in Cart: 0
    Quantity:
    Price:
    $337.77
    Subtotal:
  • Schaeffer 9040-005 Supreme 9000 Full Synthetic Gasoline Engine Oil 0W-40 (5-Gallons)

    Schaeffer's 9040-005 Supreme 9000 Synthetic 0W-40 | 5-G

    Schaeffer Mfg Co.

    $409.37
    Save 10% when you buy 3! Schaeffer's 9040 Supreme 9000 Full Synthetic Gasoline Engine Oil SAE 0W-40 (5-Gallons) is designed for high performance SRT engines found in the Charger, Magnum and Challenger.  It is blended from a unique...
    $409.37
    Qty in Cart: 0
    Quantity:
    Price:
    $409.37
    Subtotal:
  • On Sale
    Schaeffer 9040-012 Supreme 9000 Full Synthetic Gasoline Engine Oil 0W-40 (12-Quarts)

    Schaeffer's 9040-012 Supreme 9000 Synthetic 0W-40 | 12-QTS

    Schaeffer Mfg Co.

    Now: $280.28
    Was: $315.74
    Save 10% when you buy 5! Schaeffer's 9040 Supreme 9000 Full Synthetic Gasoline Engine Oil SAE 0W-40 (12-Quarts) is designed for high performance SRT engines found in the Charger, Magnum and Challenger.  It is blended from a unique...
    Now: $280.28
    Was: $315.74
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $280.28
    Was: $315.74
    Subtotal:
  • On Sale
    Schaeffer 9003D-006 Supreme 9000 Full Synthetic Gasoline Engine Oil 5W-30 (6-Gallons)

    Schaeffer 9003D-006 Supreme 9000 Synthetic 5W-30 | 6-GC

    Schaeffer Mfg Co.

    Now: $428.92
    Was: $449.86
    Save 10% when you buy 3! Schaeffer's 9003D Supreme 9000 Full Synthetic Gasoline Engine Oil 5W-30 (6-Gallons) is specially engineered with the finest quality of synthetic base oils and proven friction modifiers. With an advanced...
    Now: $428.92
    Was: $449.86
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $428.92
    Was: $449.86
    Subtotal:
  • On Sale
    Schaeffer 8008-012 Advanced European Performance Mid SAPS 5W-30 (12-Quarts)

    Schaeffer's 8008-012 European Performance Mid SAPS 5W-30 | 12-QTS

    Schaeffer Mfg Co.

    Now: $286.01
    Was: $296.09
    Schaeffer's 8008 Advanced European Performance Mid SAPs SAE 5W-30 (12-Quarts) is designed to meet the specific performance requirements of European vehicles. Blended from a unique combination of full synthetic base fluids. Schaeffer’s European...
    Now: $286.01
    Was: $296.09
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $286.01
    Was: $296.09
    Subtotal:
  • Schaeffer 8008-005 Advanced European Performance Mid SAPS 5W-30 (5-Gallons)

    Schaeffer's 8008-005 European Performance Mid SAPS 5W-30 | 5-G

    Schaeffer Mfg Co.

    $443.68
    Save 10% when you buy 3! Schaeffer's 8008 Advanced European Performance Mid SAPs SAE 5W-30 (5-Gallons) is designed to meet the specific performance requirements of European vehicles. Blended from a unique combination of full synthetic base fluids...
    $443.68
    Qty in Cart: 0
    Quantity:
    Price:
    $443.68
    Subtotal:
  • On Sale
    Schaeffer 8007-005 Advanced European Performance Full SAPS 5W-30 (5-Gallons)

    Schaeffer’s 8007-005 European Performance Full SAPS 5W-30 | 5-G

    Schaeffer Mfg Co.

    Now: $428.81
    Was: $443.68
    Save 10% when you buy 3! Schaeffer’s 8007 Advanced European Performance Full SAPS SAE 5W-30 (5-Gallons) oils are designed to meet the specific performance requirements of European vehicles. Blended from a unique combination of full synthetic base...
    Now: $428.81
    Was: $443.68
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $428.81
    Was: $443.68
    Subtotal:
  • Schaeffer 8007-012 Advanced European Performance Full SAPS 5W-30 (12-Quarts)

    Schaeffer's 8007-012 European Performance Full SAPS 5W-30 | 12-QTS

    Schaeffer Mfg Co.

    $287.47
    Schaeffer’s 8007 Advanced European Performance Full SAPS SAE 5W-30 (12-Quarts) oils are designed to meet the specific performance requirements of European vehicles. Blended from a unique combination of full synthetic base fluids...
    $287.47
    Qty in Cart: 0
    Quantity:
    Price:
    $287.47
    Subtotal:
  • Schaeffer 9005-005 Supreme 9000 Synthetic 0W-20 | 5-G

    Schaeffer 9005-005 Supreme 9000 Synthetic 0W-20 | 5-G

    Schaeffer Mfg Co.

    $373.65
    Save 10% when you buy 3! Schaeffer's 9005 Supreme 9000 Full Synthetic Gasoline Engine Oil 0W-20 (5-Gallons) is specially engineered with the finest quality synthetic base oils and proven friction modifiers. With an advanced...
    $373.65
    Qty in Cart: 0
    Quantity:
    Price:
    $373.65
    Subtotal:
  • On Sale
    Schaeffer 9005-012 Supreme 9000 Full Synthetic Gasoline Engine Oil 0W-20 (12-Quarts)

    Schaeffer 9005-012 Supreme 9000 Synthetic 0W-20 | 12-QTS

    Schaeffer Mfg Co.

    Now: $234.12
    Was: $256.83
    Save 10% when you buy 6! Schaeffer's 9005 Supreme 9000 Full Synthetic Gasoline Engine Oil 0W-20 (12-Quarts) is specially engineered with the finest quality synthetic base oils and proven friction modifiers. With an advanced...
    Now: $234.12
    Was: $256.83
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $234.12
    Was: $256.83
    Subtotal:
  • On Sale
    Schaeffer 9004-012 Supreme 9000 Full Synthetic Gasoline Engine Oil 5W-20 (12-Quarts)

    Schaeffer 9004-012 Supreme 9000 Synthetic 5W-20 | 12-QTS

    Schaeffer Mfg Co.

    Now: $233.55
    Was: $256.85
    Save 10% when you buy 6! Schaeffer's 9004 Supreme 9000 Full Synthetic Gasoline Engine Oil 5W-20 (12-Quarts) is specially engineered with the finest quality synthetic base oils and proven friction modifiers. With an advanced...
    Now: $233.55
    Was: $256.85
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $233.55
    Was: $256.85
    Subtotal:
  • Schaeffer's 9004-005 Supreme 9000 Full Synthetic Gasoline Engine Oil 5W-20 (5-Gallons)

    Schaeffer 9004-005 Supreme 9000 Synthetic 5W-20 | 5-G

    Schaeffer Mfg Co.

    $373.65
    Save 10% when you buy 3! Schaeffer's 9004 Supreme 9000 Full Synthetic Gasoline Engine Oil 5W-20 (5 Gallons) is specially engineered with the finest quality synthetic base oils and proven friction modifiers. With an advanced...
    $373.65
    Qty in Cart: 0
    Quantity:
    Price:
    $373.65
    Subtotal:
  • On Sale
    Schaeffer 9003D-012 Supreme 9000 Full Synthetic Gasoline Engine Oil 5W-30 (12-Quarts)

    Schaeffer 9003D-012 Supreme 9000 Synthetic 5W-30 | 12-QTS

    Schaeffer Mfg Co.

    Now: $242.06
    Was: $255.83
    Save 10% when you buy 6! Schaeffer's 9003D Supreme 9000 Full Synthetic Gasoline Engine Oil 5W-30 (12-Quarts) is specially engineered with the finest quality of synthetic base oils and proven friction modifiers. With an advanced...
    Now: $242.06
    Was: $255.83
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $242.06
    Was: $255.83
    Subtotal:
  • On Sale
    Schaeffer 9003D-005 Supreme 9000 Full Synthetic Gasoline Engine Oil 5W-30 (5-Gallons)

    Schaeffer 9003D-005 Supreme 9000 Synthetic 5W-30 | 5-G

    Schaeffer Mfg Co.

    Now: $370.22
    Was: $388.03
    Save 10% when you buy 3! Schaeffer's 9003D Supreme 9000 Full Synthetic Gasoline Engine Oil 5W-30 (5 Gallons) is specially engineered with the finest quality of synthetic base oils and proven friction modifiers. With an advanced...
    Now: $370.22
    Was: $388.03
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $370.22
    Was: $388.03
    Subtotal:
  • On Sale
    Schaeffer's 070230-005 Supreme 7000 Synthetic Plus Engine Oil SAE 30 (5-Gallons)

    Schaeffer's 702 Supreme 7000 Synthetic Plus SAE 30 | 5-G

    Schaeffer Mfg Co.

    Now: $328.22
    Was: $368.81
    Save 10% when you buy 4! Schaeffer's 702 Supreme 7000™ Synthetic Plus Engine Oil SAE 30 (5-Gallons) is blended from a combination of polyalphaolefin (PAO) synthetic based fluids and hydro-converted Group II Plus oils. Schaeffer...
    Now: $328.22
    Was: $368.81
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $328.22
    Was: $368.81
    Subtotal:
  • On Sale
    Schaeffer's 0701-005 Supreme 7000 Synthetic Plus Gasoline Engine Oil 5W-30 (5-Gallons)

    Schaeffer's 701-005 Supreme 7000 Synthetic Plus 5W-30 | 5-G

    Schaeffer Mfg Co.

    Now: $330.10
    Was: $344.96
    Save 10% when you buy 4! Schaeffer's 701 Supreme 7000™ Synthetic Plus Gasoline Engine Oil SAE 5W-30 (5-Gallons) is blended from a combination of polyalphaolefin (PAO) synthetic based fluids and hydro-converted Group II Plus oils. Schaeffer...
    Now: $330.10
    Was: $344.96
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $330.10
    Was: $344.96
    Subtotal:
  • On Sale
    Schaeffer's 0703-012 Supreme 7000 Synthetic Plus Gasoline Engine Oil 10W-30 (12-Quarts)

    Schaeffer's 703-012 Supreme 7000 Synthetic Plus 10W-30 | 12-QTS

    Schaeffer Mfg Co.

    Now: $229.87
    Was: $251.06
    Save 10% when you buy 6! Schaeffer's 703 Supreme 7000™ Synthetic Plus Gasoline Engine Oil SAE 10W-30 (12-Quarts) is blended from a combination of polyalphaolefin (PAO) synthetic based fluids and hydro-converted Group II Plus...
    Now: $229.87
    Was: $251.06
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $229.87
    Was: $251.06
    Subtotal:
  • On Sale
    Schaeffer's 0701-005 Supreme 7000 Synthetic Plus Gasoline Engine Oil 10W-30 (5-Gallons)

    Schaeffer's 703-005 Supreme 7000 Synthetic Plus 10W-30 | 5-G

    Schaeffer Mfg Co.

    Now: $330.10
    Was: $344.96
    Save 10% when you buy 4! Schaeffer's 703 Supreme 7000™ Synthetic Plus Gasoline Engine Oil SAE 10W-30 (5-Gallons) is blended from a combination of polyalphaolefin (PAO) synthetic based fluids and hydro-converted Group II Plus...
    Now: $330.10
    Was: $344.96
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $330.10
    Was: $344.96
    Subtotal:
  • On Sale
    Schaeffer 0701-012 Supreme 7000 Synthetic Plus Gasoline Engine Oil 5W-30 (12-Quarts)

    Schaeffer's 701-012 Supreme 7000 Synthetic Plus 5W-30 | 12-QTS

    Schaeffer Mfg Co.

    Now: $229.87
    Was: $255.37
    Save 10% when you buy 6! Schaeffer's 701 Supreme 7000™ Synthetic Plus Gasoline Engine Oil SAE 5W-30 (12-Quarts) is blended from a combination of polyalphaolefin (PAO) synthetic based fluids and hydro-converted Group II Plus...
    Now: $229.87
    Was: $255.37
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $229.87
    Was: $255.37
    Subtotal:
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