The Best Motor Oil 2025

1. Valvoline VR1 Racing 40 Conventional Motor Oil 1 QT

*Packaging May Vary* From drag strips to paved and dirt ovals, racing performance demands race-level protection. Which is why motorsport teams and enthusiasts depend on Valvoline VR1 Racing Motor Oil, America’s #1 racing oil. Our exclusive high zinc and phosphorus formula is engineered specifically for modern and classic high-performance engines both on and off the track, which includes flat-tappet and performance cam motors. It’s chemically designed to reduce internal friction and enhance power output, while protecting critical engine parts from wear under the extreme conditions of racing. While its high load carrying characteristics, minimum foaming under stress and maximum resistance to thermal degradation ensure stability and lubrication. Valvoline VR1 Racing Motor Oil is recommended for high-performance gasoline engines as well as those burning full or partial alcohol fuels. It is not recommended for vehicles with catalytic converters or in wet clutches. Go with the proven winner, Valvoline. The trusted motor oil brand for over 150 years.

AMERICA’S #1 RACING OIL is recommended for high-performance gasoline engines as well as those burning full or partial alcohol fuels SPECIAL FRICTION MODIFIERS help minimize friction, keeping heat at bay for maximum power and torque at high RPMs 2X MORE ZINC FOR EXTREME WEAR PROTECTION for even greater film strength and anti-wear protection on critical engine components such as pistons, cams and bearings ENHANCED ANTI-FOAM AGENTS SAFEGUARD CRITICAL PARTS in high speeds and extreme conditions PHOSPHORUS FORMULA is engineered specifically for modern and classic high-performance engines both on and off the track, which includes flat-tappet and performance cam motors.

2. Shell Rotella T6 Full Synthetic 5W-40 Diesel Engine Oil, 5 Gallon

Shell Rotella T6 5W-40 diesel engine oil is a full synthetic motor oil that features exclusive Triple Protection Plus technology. It's formulated with fully synthetic base oils plus advanced additives to protect against wear, deposits, and oil breakdown. It also provides better low-temperature flow and enhanced fuel economy performance of 1.5% (compared to 15W-40 oils). Shell Rotella T6 5W-40 is suitable for new and older diesel-powered vehicles from Class 8 tractor/trailers to heavy-duty diesel pickups, delivery, utility, school bus fleets, and motorcycles. It provides a significantly increased level of protection against harmful engine wear (compared to previous generation API CJ-4 engine oils), and the advanced multi-functional dispersant additives offer an enhanced level of protection against the effects of soot, dirt, and other contaminants. (*Shell Rotella Limited Warranty: Up to 15 years or 500,000 miles, whichever comes first, guaranteed, if you exclusively use Shell Rotella T6 Full Synthetic heavy-duty engine oil and meet enrollment mileage and vehicle manufacture date requirements. Enrollment required. Keep your receipts. Other conditions apply. See Rotella.com/warranty to enroll and for full details and terms.)

Full synthetic 5W-40 diesel engine oil with Triple Protection Plus technology protects against wear, deposits, and oil breakdown Improved wear performance with significantly increased level of protection against harmful engine wear (compared to previous generation API CJ-4 engine oils) Enhanced fuel economy capability of 1.5% without compromising engine protection or durability (compared to 15W-40 oils) Multi-functional dispersant additives provide an enhanced level of protection against the effects of soot, dirt, and other contaminants Resists breakdown by heat to provide continuous protection throughout the service interval, and also provides improved low-temperature flow compared to conventional 15W-40 oils Advanced low-ash formulation helps control blocking of or poisoning of exhaust after-treatment devices Limited warranty valid up to 15 years or 500,000 miles (whichever comes first) if you exclusively use Shell Rotella T6 Full Synthetic Technology heavy-duty engine oil* Meets or exceeds the following industry specifications: API CK-4, CJ-4, CI-4 PLUS, CI-4, CH-4; ACEA E11; JASO DH-2, MA, MA2 Meets or exceeds the following OEM specifications: Cummins CES 20086, 2008; Volvo VDS-4.5, VDS-4; MACK EOS-4.5; Detroit Fluid Specification (DFS) 93K222, 93K218; Caterpillar ECF-2, ECF-3; MAN M3575; Allison TES-439; DTFR 15C100 (prev. MB 228.31); Ford WSS-M2C171-F1 For a full list of equipment approvals and recommendations, please consult your local Shell Technical Help Desk and always consult your owner’s manual

3. Sierramarine 182056 Oil Seal

Sierra International, 18-2056, Oil Seal Package dimensions: 11.176 cms L x 10.16 cms W x 0.762 cms H Package quantity: 1 Product Type: Auto Part Country of Origin: Taiwan Manufacturer: ?Teleflex Marine Brand: ?Sierra International Model: ?Oil Seal Item Weight: ?0.32 ounces Product Dimensions: ?1.5 x 1.5 x 1 inches Country of Origin: ?Taiwan Item model number: ?18-2056 Is Discontinued By Manufacturer: ?No Exterior: ?Machined Manufacturer Part Number: ?18-2056 OEM Part Number: ?26-96503 1, MERCURY MARINE 26-66302 OEM: MERCURY MARINE 26-66302, 26-96503 1

Package dimensions: 11.176 cms L x 10.16 cms W x 0.762 cms H Package quantity: 1 Product Type: Auto Part Country of Origin: Taiwan

4. MOBIL 103479 1 Gal. Cutting Oil Mobilmet 766

" Cutting Oil, Container Size 1 gal, Can, Clear, Application Tapping, Threading, Milling, Gear Shaving and Shaping, Broaching, Planning, Parting Off and Automatic Lathe Operations Features Container Type: Can Physical Form: Liquid Base Oil: Mineral Fragrance: Mild Odor Series: MobilMet(R) 766 Viscosity: 6.1 cSt @ 100 Degrees C Fluid Type: MobilMet(R) 766 Size: 1 gal. Fluid Properties: Chlorine Free Cutting Fluid Sub-Category: Cutting Oils Application: Broaching, Gear Shaving and Shaping, Milling, Parting Off and Automatic Lathe Operations, Planning, Tapping, Threading Item: Cutting Oil Flash Point: 205 Degrees F Specific Gravity: 1.0 Container Size: 1 gal Features: 1.6% Sulfur, Anti Mist Formulation And Has Environmental And Disposal Benefits, Excellent Lubricity Container Style: Jug Color: Clear "

Item Type: Cutting Oil Brand: MOBIL Manufacturer Part Number: 103479

5. Briggs and Stratton Genuine OEM Replacement Oil # 100107

Includes (1) 100107 Oil New, Bulk Packed Genuine OEM Replacement Part # 100107 Consult owners manual for proper part number identification and proper installation Please refer to list for compatibility.

The 3.2 oz. bottle of ashless oil can be easily added to 1 gallon of fresh gasoline and is appropriate for any mix ratio up to 50:1.

6. Warren Distribution LK05102G 2GAL SAE 10W Diesel Oil

2GAL SAE 10W Diesel Oil

The product is 2GAL SAE 10W Diesel Oil Easy to use The product is manufactured in China

7. Mag1 MAG61658 Diesel Engine Oil, All Fleet SAE 15W-40, 1 Quart

Mag 1, QT, 15W40 Diesel Oil, High Detergency & Superior Dispersancy Keep Engines Clean & Soot Suspended In The Oil Despite Longer Drain Intervals & Increased Soot Loading, Exceptional Resistance To

The product is Mag1 QT 15W40 Dies Oil Easy to use The product is manufactured in China Wear protection significantly exceeding API CJ-4 and the toughest OEM specifications High detergency and superior dispersancy keeps engines and pistons clean and soot suspended in the oil despite longer drain intervals and increased soot loading Higher starting TBN (10.0) provides added oxidation control and protection against acid build-up that can cause rust and corrosion Excellent TBN retention Excellent oxidation control and piston cleanliness

8. Warren Distribution MG52FLPL Mag1 QT 5W20 Synthetic Oil

For updated, accurate country of origin data, it is recommended that you rely on product packaging or manufacturer information. Features.Features- 5W20 Full Synthetic Oil- 100 Synthetic Base Oil- Dexos1 Certified To Satisfy GM Warranty Requirements- Formulated With High Phosphate Retention ZDDP For Extended Wear Performance- Even In The Most Severe Industry Tests- Keeps Pistons Cleaner Minimizing Oil Consumption Maintaining Power Compression Performance- Maximizes Fuel Economy- Reduces Engine Sludge To Near Zero-- Pack of 6- Dimension - 4-38 x 2-38 x 9 in-- Item Weight - 2-05 lbs- SKU: TRVAL58054

Warren Distribution MG52FLPL Mag1 QT 5W20 Synthetic Oil

9. Lube King LU05302G 30W Diesel Engine Oil- 2 Gallon

The product is 2GAL 30W Diesel Eng Oil. Easy to use. The product is manufactured in China.

Features 30W Diesel Engine Oil. 2 Gallon. For Use In All Diesel Engines Requiring A 30W Engine Oil. Can Also Be Used In 1993 & Older Gasoline Engines. Dimension - 9 x 6.5 x 11.63 in. Item Weight - 15.22 lbs. - SKU: TRVAL28470

10. Russell Pro System Individual Oil Line, 11in.

PRO SYSTEM INDIVIDUAL OIL LINES. Designed for applications when a stock oil line kit wont work. Feature pre-assembled, individual 3/8???" ID braided stainless steel PTFE oil lines with rubber compression fittings. Fit most standard 3/8???" single-barb oil fittings. Length given is the overall length, including the fittings. Replacement seals for compression fittings available separately. To complete installation use single barb hose tank fittings such as PART #DS-245274. Made in the U.S.A.

PRO SYSTEM INDIVIDUAL OIL LINES Designed for applications when a stock oil line kit won't work Feature pre-assembled, individual 3/8???" ID braided stainless steel PTFE® oil lines with rubber compression fittings Fit most standard 3/8???" single-barb oil fittings Length given is the overall length, including the fittings Replacement seals for compression fittings available separately To complete installation use single barb hose tank fittings such as PART #DS-245274 Made in the U.S.A.