Top 10 Best 15w40 Diesel Oil Full Synthetic

of November 2024
1
Best ChoiceBest Choice
Ultra1Plus SAE 15W-40 Synthetic Blend Heavy-Duty Motor Oil API CK-4/SN - 1 Quart
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
Triax Fleet Supreme ESP 15W-40 API CK-4 Full Synthetic Diesel Engine Oil,
Triax
Triax
9.8
Exceptional
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4
Hot Shot's Secret Green Diamond 100 Percent Synthetic 15W40 Oil Diesel 1 Gallon
Hot Shot's Secret
Hot Shot's Secret
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
Triax Fleet Ultra ESP 15W-40 API CK-4 Licensed Synthetic Blend, Moly and Boron
Triax
Triax
9.4
Excellent
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8
Shell Rotella T5 Synthetic Blend 15W-40 Diesel Engine Oil (1 Gallon, Case of 3)
Shell Rotella
Shell Rotella
9.3
Excellent
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9
Lucas Oil 10299-PK4 Synthetic 15W-40 CJ-4 Truck Oil - 1 Gallon Jug, Pack of 4
Lucas Oil
Lucas Oil
9.2
Excellent
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10
Valvoline Premium Blue SAE 15W-40 Diesel Engine Oil 1 GA, Case of 3
Valvoline
Valvoline
9.1
Excellent
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11
Mobil 1 112786 Delvac 1300 Super 15W-40 Diesel Engine Oil - 4 Gallon Pack
Mobil 1
Mobil 1
9.0
Excellent
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About 15w40 Diesel Oil Full Synthetic

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Ultra1Plus SAE 15W-40 Synthetic Blend Heavy-Duty Motor Oil API CK-4/SN - 1 Quart

ADVANCED 15W-40 SYNTHETIC BLEND OIL Protects modern older diesel engines API CK-4SN.. EXTENDS ENGINE LIFE Reduces wear controls soot build-up for long engine life.. EXCEPTIONAL PERFORMANCE Excellent oxidation stability viscosity control in extreme conditions.. IMPROVED FUEL ECONOMY Enhanced oil efficiency allows for extended drain intervals.. COLD WEATHER STARTS Formulated for smooth starting and pumpability in very cold temperatures..

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.

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.

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.

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.

Triax Fleet Ultra ESP 15W-40 API CK-4 Licensed Synthetic Blend, Moly and Boron Performance Boosted, Heavy Duty Diesel Engine Oil, OEM Compatible with Volvo, Mack, Cummins, DD (5 Gallon Pail)

Contains built-in performance boosters for friction reduction, oxidation inhibition, shear, and viscosity stability. Nano borate and organic molybdenum reinforced for outstanding wear reduction and heat management eliminates stiction and injector issues frees most stuck piston rings contains state-of-the-art dispersal and ash control systems to keep your engine extremely clean. API licensed synthetic blend product for the latest API CK-4 New CK-4 spec. This product is backwards compatible with virtually all heavy-duty diesel engines from all years on both US, Japanese and European heavy-duty trucks and equipment including previous CJ-4, CI-4, and CI-4 Plus specifications. Drain capabilities exceed 12,000 miles for farm trucks, 65,0000 miles for class 8 highway trucks, and 40,000 miles for in city, mixed traffic heavy-duty diesel trucks.

Shell Rotella T5 Synthetic Blend 15W-40 Diesel Engine Oil (1 Gallon, Case of 3)

Synthetic blend 15W-40 diesel engine oil with Triple Protection Plus technology protects against wear, deposits, and oil breakdown. Ideal for on-highway fleets, construction, and agricultural machinery, and diesel pickup trucks including high-power vehicles that require resistance to heat and stress. Improves low-temperature flow compared to conventional 15W-40 oils. Helps control engine deposits for reliability at extended oil drain intervals always follow the OEM recommended oil drain interval. Controls engine wear 37 percent better than the maximum wear requirements in API CK-4 engine wear tests. Improved oxidation performance for increased resistance to oil breakdown under high temperatures compared to the previous formulation. Case of three 1-gallon bottles with ergonomic design for easy handling and pouring.

Lucas Oil 10299-PK4 Synthetic 15W-40 CJ-4 Truck Oil - 1 Gallon Jug, Pack of 4

For best performance, follow the manufacturer's recommendations in your vehicle owners manual..

Valvoline Premium Blue SAE 15W-40 Diesel Engine Oil 1 GA, Case of 3

Valvoline Premium Blue Engine oil is The Only One exclusively endorsed and recommended by Cummins. Strong shear stability provides stay-in-grade performance. Outstanding wear protection. Superior deposit protection compared to industry requirements.

Mobil 1 112786 Delvac 1300 Super 15W-40 Diesel Engine Oil - 4 Gallon Pack

Size 1 Gallon. Type 15w - 40. For usediesel engines requiring 15w-40 engine oil referbottle for specifications. Extends engine life with its unique additive system.
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