The Best All Motor Oil 2025

1. 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

2. Slick 50 Supercharged Synthetic Engine Treatment (15 oz.)

Slick 50 Supercharged Synthetic Engine Treatment pour and drive formula enhances oil durability, cleans and prevents sludge, and fights ethanol water damage. Fully formulated synthetic 5W-30 motor oil meets ILSAC (International Lubricants Standardization and Approval Committee) GF-5 motor oil requirements to help reduce emissions and maximize fuel economy. Friction modifier creates enhanced protective layer of lubrication to minimize heat produced by friction. ZDDP (zinc dialyldithiophosphate) anti-wear agent forms a continuous, self-regenerating shield between engine parts to prevent metal to metal wear and enhance oil durability. Hydro-ethanol inhibitor helps fight ethanol, rust and water build up in the crankcase caused by cylinder wash and blow-by.

Slick 50 Supercharged Synthetic Engine Treatment (15 oz.)

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 105481 Mobil Velocite 10, Spindle Oil, 5 gal.

" Mobil Velocite 10 Spindle Oil is a high-quality spindle oil that is specifically formulated for use with high-speed spindles. It can be used for plain and anti-friction bearings in textile machines, precision grinders and other machine tools, and many other applications that require a high-quality spindle oil. The Mobil Velocite 10 spindle oil has a mild odor that is pleasant to work with. It has an amber color, and comes in a pail that is easy to handle and pour from. It has excellent water separation and oxidation resistance, and provides very good rust and corrosion protection. This spindle oil meets the standards of the American Society for Testing and Materials. Features Application: For High Speed Spindle, Plain and Anti-friction Bearings in Textile Machines, Precision Grinders and Other Machine Tools Flash Point: 212 Degrees C Color: Amber Physical Form: Liquid Container Style: Pail Viscosity: 2400 cps Container Size: 5 gal Cutting Fluid Sub-Category: Spindle Oils Features: Effective Water Separation;Good Oxidation Resistance;Very Good Rust and Corrosion Protection Standards: ASTM Sub-Category: Hydraulic Size: 5 gal. Container Type: Pail ISO Viscosity Grade: 22 Fragrance: Mild Odor Base Oil: Mineral Item: Spindle Oil Viscosity Index: 22 Base Formulation: Mineral For Equipment Type: Air Line Oilers, Jig Borers and Tracer Mechanisms, Low-Pressure Hydraulic Systems, Precision Grinders and Lathes, Some Sensitive Instruments such as Telescopes and Lab Equipment, Spindle Bearings SAE Grade: 5W Density: 0.862kg/L @ 15 Degrees C Pour Point: -30 Degrees C Viscosity @ 40 C: 22.0 cSt Four-Ball Wear: Not Specified Viscosity @ 100 C: 4.0 cSt Form: Liquid Oil Type: Spindle Oils Food Grade: No ISO Grade: 22 Zoro Benefits: 7,000+ Brands. Free Shipping. Hassle Free Returns. "

Item Type: Spindle Oil Brand: MOBIL Manufacturer Part Number: 105481

5. 1PC-Valvoline 601458 Synthetic Dot 3 & 4 Brake Fluid, 32 Oz

Premium grade brake fluid designed for all ABS, drum or disc brake systems requiring DOT 3 or DOT 4 fluid. Featuring a high dry boiling point, Valvoline Brake Fluid reduces the risk of fluid evaporation and possible brake failure and the low-moisture formula provides excellent vapor lock protection for maximum braking performance, while also gaurding against corrosion. Size: 32 Oz; Compatible with all DOT 3 & DOT 4 fluids; Low moisture activity; Maximizes ABS performance; Ideal for hydraulic & disc brake; Mixes with conventional brake fluid; Meets all Federal Motor Vehicle Safety Standard (FMVSS) No. 116 & SAW J1703 specifications.;

1PC-Valvoline 601458 Synthetic Dot 3 & 4 Brake Fluid, 32 Oz

6. 1PC-Valvoline 601457 Synthetic Dot 3 & 4 Brake Fluid, 12 Oz

Premium grade brake fluid designed for all ABS, drum or disc brake systems requiring DOT 3 or DOT 4 fluid. Featuring a high dry boiling point, Valvoline Brake Fluid reduces the risk of fluid evaporation and possible brake failure and the low-moisture formula provides excellent vapor lock protection for maximum braking performance, while also gaurding against corrosion. Size: 12 Oz; Compatible with all DOT 3 & DOT 4 fluids; Low moisture activity; Maximizes ABS performance; Ideal for hydraulic & disc brake; Mixes with conventional brake fluid; Meets all Federal Motor Vehicle Safety Standard (FMVSS) No. 116 & SAW J1703 specifications.;

1PC-Valvoline 601457 Synthetic Dot 3 & 4 Brake Fluid, 12 Oz

7. Valvoline VV986 Lb Synthetic Grease

Valvoline, lb, full synthetic moly-fortified grease. valvoline's best automotive grease. formulated with full synthetic base oil, moly and other premium additives to provide the ultimate performance from high loads and extreme temperatures, -40 to 400 degrees fahrenheit.

Valvoline VV986 Lb Synthetic Grease

8. (12 pack) Bar's Leaks Oil Seal Engine Oil Burning & Leak Repair

Your vehicle is a good candidate for this solution if it does not consume more than one quart of oil per day. We have designed this product to work in all gasoline and diesel engines including turbocharged, EcoBoost, hybrid and even racing engines. This covers 3, 4, 5, 6, 8 and 10 cylinder engines in all cars, trucks, vans and SUV’s. Our product can also be used in heavy-duty applications referencing the appropriate dosage level. This applies to a wide range of other motor applications too: tractors, boats, RV’s, motorcycles (including wet clutch), ATV’s, lawn equipment. One Treatment Stops All Engine Oil Loss Guaranteed

Bar's Leaks Oil Seal Engine Oil Burning & Leak Repair Safe and Easy to Use Works Quickly Best Repair Formula Money Can Buy Synthetic Blend, for All Engines Guaranteed to: Repair Leaking Main Seals and Gaskets Renew Worn Valve Seals and Guides Stop Oil Burning & Blue Exhaust Smoke Seal All Other Oil Leaks, Drips and Consumption

9. Brava Diamantis 5W30 Full Synthetic Oil (case of 6)

Elevated detergent and dispersant power that avoids the formation of deposits and grinding of cylinders, guaranteeing the cleanliness of the pistons.

full synthetic oil 5W30 motor oil 5W30 cars motor

10. 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.