Top 10 Best 15w40 Full Synthetic

of November 2024
1
Best ChoiceBest Choice
Ultra1Plus SAE 15W-40 Full Synthetic Heavy-Duty Motor Oil, API CK-4/SN - Diesel
ULTRA 1PLUS
ULTRA 1PLUS
10
Exceptional
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2
Best ValueBest Value
Shell Rotella T6 Full Synthetic 15W-40 Diesel Engine Oil (1-Gallon, Case of 3)
Shell Rotella
Shell Rotella
9.9
Exceptional
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3
Royal Purple 06154 Motor Oil - 15W40 - Synthetic - 1 qt - Set of 6
Royal Purple
Royal Purple
9.8
Exceptional
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4
Triax Fleet Supreme ESP 15W-40 API CK-4 Full Synthetic Diesel Engine Oil,
Triax
Triax
9.7
Exceptional
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5
Ultra1Plus SAE 15W-40 Full Synthetic Heavy-Duty Motor Oil, API CK-4/SN | 5
ULTRA 1PLUS
ULTRA 1PLUS
9.6
Exceptional
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6
Triax Agra Supreme ESP 15W-40 CK-4/CJ-4 Full Synthetic, Extreme Performance
Triax
Triax
9.5
Excellent
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7
Hot Shot's Secret Green Diamond 100 Percent Synthetic 15W40 Oil Diesel 1 Gallon
Hot Shot's Secret
Hot Shot's Secret
9.4
Excellent
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8
Shell Rotella T6 Full Synthetic 15W-40 Diesel Engine Oil (1-Gallon, Single Pack)
Shell Rotella
Shell Rotella
9.3
Excellent
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9
Royal Purple 05154 API-Licensed SAE 15W-40 High Performance Synthetic Motor Oil
Royal Purple
Royal Purple
9.2
Excellent
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10
Golf is Not a Game of Perfect
Simon & Schuster
Simon & Schuster
9.1
Excellent
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11
Tulux T500 15W40 Classic Diesel Engine Oil - 275 Gallon IBC Tote (1)
Sinopec
Sinopec
9.0
Excellent
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About 15w40 Full Synthetic

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Ultra1Plus SAE 15W-40 Full Synthetic Heavy-Duty Motor Oil, API CK-4/SN - Diesel Engine Oil

SUPERIOR ENGINE PROTECTION U1P SAE 15W-40 Full synthetic formula reduces wear and extends engine life.. ENHANCED PERFORMANCE Strong shear stability maintains oil viscosity for optimal performance under demanding conditions.. COMBATS DEPOSITS OXIDATION Fights soot, sludge, and oil breakdown for cleaner engines and longer oil life.. FUEL EFFICIENCY Minimizes oil consumption for improved fuel economy in various driving conditions.. BROAD COMPATIBILITY Exceeds API CK-4, API CJ-4, CI-4CI-4, CI-4, and CH-4 standards, suitable for a wide range of diesel engines..

Shell Rotella T6 Full Synthetic 15W-40 Diesel Engine Oil (1-Gallon, Case of 3)

Full synthetic 15W-40 diesel engine oil with Triple Protection Plus technology protects against wear, deposits, oil breakdown, and improves low-temperature flow. Exceptional wear protection for longer life in a wide range of heavy-duty engine applications from pickup trucks to tractors to semi rigs. Enhanced fuel economy capability of 1.5 percent 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 compared to previous formulation. Increased shear stability for better viscosity control and optimal engine oil pressure. Better cold-cranking properties and low-temperature pumpability for reaching critical engine parts faster. Case of three 1-gallon bottles with ergonomic design for easy handling and pouring. Advanced low ash formulation helps protect the exhaust catalysts and particulate filters found on the latest low-emission vehicles.

Royal Purple 06154 Motor Oil - 15W40 - Synthetic - 1 qt - Set of 6

Triax Fleet Supreme ESP 15W-40 API CK-4 Full Synthetic Diesel Engine Oil, Friction Optimized and Boosted with Molybdenum and Nano-Boron, Superb Powerstroke Performance (5 Gallon Pail)

CRP organic, metallic, Moly plating technology for unsurpassed wear protection, oxidation, and high temp stability. Friction modified and VI stabilizer pre-boosted un-rivaled turbo-charger protection will not create deposits and ash on turbo bearings will not fry on the turbo. Contains state-of-the-art dispersal and ash control systems to keep your engine extremely clean. Extreme drain intervals capabilities 25,000-mile drain interval for pickups and 80,000 for class 8 semi-trucks. Eliminates the need to clean diesel particulate filters and is for use in virtually all diesel-powered pickups and heavy-duty trucks, both pre 2007 and post 2007 models fitted with emission control systems.

Ultra1Plus SAE 15W-40 Full Synthetic Heavy-Duty Motor Oil, API CK-4/SN | 5 Gallon Pail

Engine wear protection.. Strong shear stability provides stay-in-grade performance.. Minimizes Oil Consumption.. Enhanced oxidation control.. Resistant to viscosity and thermal breakdown at high temperatures..

Triax Agra Supreme ESP 15W-40 CK-4/CJ-4 Full Synthetic, Extreme Performance Agricultural Equipment Diesel Oil, Moly Friction Modified, Shear Stable, High Load Capacity (5 Gallon Pail)

Replaces all OEM fluid agricultural engine oils moly and boron friction modified and pre-boosted. Ultra high-performance, full synthetic formulation exceeds API CK-4 CJ-4 specifications. Recommended for all heavy-duty agricultural diesel engines. Specially formulated for severe service, off-road agricultural, and construction equipment. designed to handle high torque and high load without shearing. Low ash formulation eliminates deposits on piston rings, bearings, and other critical engine parts. Designed to significantly reduce wear on bearings, turbochargers, pistons, cams, tappet, and virtually all critical engine parts by up to 65 21 better corrosive and abrasive wear protection for sustained performance.

Hot Shot's Secret Green Diamond 100 Percent Synthetic 15W40 Oil Diesel 1 Gallon

Hot Shot's Secret Green Diamond uses a unique blend of Group III base oils to improve your engine's fuel economy by up to 3 percent specialized blend gives Green Diamond formula excellent viscosity and reduces friction. By improving fuel economy and reducing wear, Green Diamond Fleet Oil lowers your engine's overall fuel consumption by up to 78 percent compared to CJ-4 spec oils. Compared to CJ-4 spec oils, Green Diamond Fleet Oil reduces wear and tear on your engine's components by 71 percent synthetic oil product keeps your engine free from scarring so it can run like new. Green Diamond Fleet Oil uses patented FR3 nanotechnology lubrication with CK4 Additive packaging to keep your oil clean and increase your horsepower 15W-40 engine oil excels in vehicles subjected to demanding operating conditions. Patented FR3 nanotechnology gets into the fine crevices of your engine to create smooth, slick surfaces that minimize metal-on-metal contact for the longest possible service life.

Shell Rotella T6 Full Synthetic 15W-40 Diesel Engine Oil (1-Gallon, Single Pack)

Full synthetic 15W-40 diesel engine oil with Triple Protection Plus technology protects against wear, deposits, oil breakdown, and improves low-temperature flow. Exceptional wear protection for longer life in a wide range of heavy-duty engine applications from pickup trucks to tractors to semi rigs. Enhanced fuel economy capability of 1.5 percent 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 compared to previous formulation. Increased shear stability for better viscosity control and optimal engine oil pressure. Better cold-cranking properties and low-temperature pumpability for reaching critical engine parts faster. Single 1-gallon bottle with ergonomic design for easy handling and pouring. Advanced low ash formulation helps protect the exhaust catalysts and particulate filters found on the latest low-emission vehicles.

Royal Purple 05154 API-Licensed SAE 15W-40 High Performance Synthetic Motor Oil - 5 Gallon

Better wear protection. Increased fuel efficiency. Better protection of the expensive catalytic emission system. Improved compatibility with fuels containing ethanol.

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Tulux T500 15W40 Classic Diesel Engine Oil - 275 Gallon IBC Tote (1)

This item does NOT ship to residential, home business or farm addresses, please scroll down to confirm shipping details prior to purchase.. Sinopec Tulux T500 Classic Diesel Engine Oil is formulated with hydrocracked high viscosity index base oils and advanced multifunctional additive technology to meet the requirements of a wide range of engine manufacturers. Suitable for pre EPA 2007 diesel engines, where excellent soot control is required. Also suitable for use in engines with or without EGR systems.. Certifications API CI-4, SM, ACEA E7-08, DH-1, Caterpillar ECF-1a Cummins CES 200782007720076, Volvo VDS-3VDS-4, Man 3275, MB 228.3, Renault RLD-3, Mack EO-M Plus, MTU Type 2.. Pack Size 275 Gallon Tote 1000L Volume.
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