What are the best API CK-4 oils for your diesel engine?
Discover how real drivers shared experiences like cutting oil changes in half with Triax Fleet Supreme 15W-40 and enjoying smoother long-haul rides with Ultra 1Plus 5W-40, boosting engine life without extra costs.
API CK-4 oils are key for diesel engines. They offer top protection against wear and soot buildup.
One user shared how Triax Fleet Supreme 15W-40 cut his oil changes by half. Another praised Ultra 1Plus 5W-40 for smoother rides on long hauls. Many say these oils boost engine life without extra cost.
This guide shows the best picks from trusted brands. You will find tips to pick the right oil for your needs.
List of Top 10 API CK-4 Oils
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Ultra 1Plus SAE 15W-40 Full Synthetic Heavy-Duty Diesel Engine Oil – 15W 40 Motor Oil API CK-4/SN (1 Gallon) |
This Ultra 1Plus SAE 15W-40 Full Synthetic Heavy-Duty Diesel Engine Oil is perfect for those who need a strong and reliable oil. It’s great for heavy-duty diesel engines. |
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TRIAX Agra Plus ESP 15W-40 CK-4 Synthetic Blend, API Licensed, Ultra High Performance, Friction Modified Diesel Engine Oil, Agricultural Equipment (5 Quart) |
This diesel engine oil is perfect for farmers and operators of heavy-duty trucks who run agricultural equipment like tractors and combines. It works great for construction jobs, towing, and off-road hauling where strong engines need top protection. |
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ULTRA 1PLUS SAE 5W-40 Full Synthetic Heavy-Duty Diesel Engine Oil – 5W 40 Motor Oil API CK-4/SN (1 Gallon) |
This ULTRA 1PLUS full synthetic diesel oil is perfect for truck drivers, fleet managers, and equipment operators who need strong protection for heavy-duty diesel engines. It’s ideal for those with 2017 and newer trucks or older models that demand API CK-4 standards. |
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Lucas Oil Synthetic SAE 5W-40 HD Motor Oil API CK-4 1 Gallon (Pack of 4) |
This Lucas Oil Synthetic SAE 5W-40 HD Motor Oil is perfect for truck owners and fleet operators who want stronger engines and fewer oil changes. It helps keep soot low and filters clean in heavy-duty machines. |
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Triax Fleet Supreme 15W-40 API CK-4 Full Synthetic Heavy Duty Diesel Engine Oil | Moly Boron Friction Modified | Extended Drain (1 Gallon) |
Triax Fleet Supreme 15W-40 is perfect for owners of heavy duty diesel trucks like Ford Powerstroke, Chevy Silverado, Dodge RAM, GMC Sierra, and highway trucks. It works great for Super Duty pickups and other tough diesel engines that need top wear protection and long drain times. |
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AGCO MultiGuard Diesel Engine Oil SAE 10W-30 API CK-4 1 Gallon, 79037119 |
This AGCO MultiGuard Diesel Engine Oil is perfect for anyone who needs reliable engine protection. It is a great choice for diesel engines that require SAE 10W-30 API CK-4 oil. |
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Lucas Oil SAE 15W-40 MAGNUM CK-4 DIESEL OIL,1 GAL (10287) |
This Lucas Oil is great for diesel engines. It’s a universal fit from the United States. |
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Triax Fleet Supreme 15W-40 API CK-4 Full Synthetic Heavy Duty Diesel Engine Oil | Moly Boron Friction Modified | Extended Drain (5 Gallon) |
This oil is perfect for owners of heavy-duty diesel trucks like Ford Powerstroke, Chevy Silverado, and Dodge RAM that need top wear protection and longer drains. It works great for fleet drivers of semis aiming for better MPG and smoother starts in cold weather. |
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ULTRA 1PLUS SAE 15W-40 Synthetic Blend API CK-4/SN Fleet Diesel Engine Oil (5 Gallon Pail) |
This ULTRA 1PLUS SAE 15W-40 Synthetic Blend API CK-4/SN Fleet Diesel Engine Oil is great for anyone with a diesel engine. It’s perfect for those who want their engine to last longer and run better. |
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ULTRA 1PLUS SAE 15W-40 Synthetic Blend Heavy-Duty Motor Oil API CK-4/SN – 5 Quart Jug |
Need tough oil for your hard-working engine? This is it. ULTRA 1PLUS is perfect for anyone wanting long engine life, better fuel economy, and reliable cold starts. |
Detailed Reviews
Discover the top 10 API CK-4 Oils, picked by experts and real users for their top-notch features and real-world results. Our guide gives you the perfect picks to boost engine life and cut costs with ease. Each oil shines in protection, fuel savings, and tough jobs, making it simple to choose. Dive in to find your ideal match and unlock better engine power today.
1. Ultra 1Plus SAE 15W-40 Full Synthetic Heavy-Duty Diesel Engine Oil – 15W 40 Motor Oil API CK-4/SN (1 Gallon)
Get ready to unleash the full potential of your engine! Ultra 1Plus SAE 15W-40 Full Synthetic Heavy-Duty Motor Oil is here to revolutionize your ride.
This oil delivers superior performance. It’s made with synthetic base oils. It keeps your engine clean and protected.
It’s perfect for modern and older diesel engines. Enjoy reduced oil consumption and ultimate protection today!
| Pros | Cons |
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Perfect For:
This Ultra 1Plus SAE 15W-40 Full Synthetic Heavy-Duty Diesel Engine Oil is perfect for those who need a strong and reliable oil. It’s great for heavy-duty diesel engines.
Ready to Purchase?
2. TRIAX Agra Plus ESP 15W-40 CK-4 Synthetic Blend, API Licensed, Ultra High Performance, Friction Modified Diesel Engine Oil, Agricultural Equipment (5 Quart)
TRIAX Agra Plus ESP 15W-40 is a top-notch oil for farm machines and tough jobs. It works great in tractors and construction gear.
It fights wear with special additives. It keeps its strength under big loads. You can go longer between oil changes.
It fits many brands like John Deere and Kubota. It beats factory oils in protection and cleaning. It keeps engines cool and quiet.
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Perfect For:
This diesel engine oil is perfect for farmers and operators of heavy-duty trucks who run agricultural equipment like tractors and combines. It works great for construction jobs, towing, and off-road hauling where strong engines need top protection.
Ready to Purchase?
3. ULTRA 1PLUS SAE 5W-40 Full Synthetic Heavy-Duty Diesel Engine Oil – 5W 40 Motor Oil API CK-4/SN (1 Gallon)
Upgrade your fleet with ULTRA 1PLUS 5W-40 full synthetic diesel oil. It cuts fuel costs by boosting fuel economy. Plus, it fights engine wear to keep trucks running longer.
This oil shields emission systems like the DPF. It meets tough API CK-4 standards for 2017+ engines.
Enjoy steady oil pressure even in hot drives. It outshines older CJ-4 oils for top-notch protection.
| Pros | Cons |
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Perfect For:
This ULTRA 1PLUS full synthetic diesel oil is perfect for truck drivers, fleet managers, and equipment operators who need strong protection for heavy-duty diesel engines. It’s ideal for those with 2017 and newer trucks or older models that demand API CK-4 standards.
Ready to Purchase?
4. Lucas Oil Synthetic SAE 5W-40 HD Motor Oil API CK-4 1 Gallon (Pack of 4)
Lucas Oil Synthetic SAE 5W-40 HD Motor Oil keeps heavy-duty engines running smooth. It meets the API CK-4 standard for top performance.
This oil helps engines last longer. It lets you change oil less often. It also keeps soot levels low and cuts down on filter cleaning.
Get your pack of 4 gallons today for reliable protection. Protect your truck or equipment with this tough motor oil.
| Pros | Cons |
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Perfect For:
This Lucas Oil Synthetic SAE 5W-40 HD Motor Oil is perfect for truck owners and fleet operators who want stronger engines and fewer oil changes. It helps keep soot low and filters clean in heavy-duty machines.
Ready to Purchase?
5. Triax Fleet Supreme 15W-40 API CK-4 Full Synthetic Heavy Duty Diesel Engine Oil | Moly Boron Friction Modified | Extended Drain (1 Gallon)
Get ready to experience the Triax Fleet Supreme 15W-40 API CK-4. This is a full synthetic heavy-duty diesel engine oil. It’s designed to make your engine run better.
It has friction modifiers for better protection. This oil offers extreme wear protection. It is also ideal for diesel trucks.
This oil allows for longer drain intervals. It also keeps your diesel particulate filters clean.
| Pros | Cons |
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Perfect For:
Triax Fleet Supreme 15W-40 is perfect for owners of heavy duty diesel trucks like Ford Powerstroke, Chevy Silverado, Dodge RAM, GMC Sierra, and highway trucks. It works great for Super Duty pickups and other tough diesel engines that need top wear protection and long drain times.
Ready to Purchase?
6. AGCO MultiGuard Diesel Engine Oil SAE 10W-30 API CK-4 1 Gallon, 79037119
Keep your diesel engine running smoothly with AGCO MultiGuard Diesel Engine Oil. This oil is designed for optimal performance and protection.
It’s a SAE 10W-30 oil with API CK-4 certification. This ensures it meets high standards.
This product comes in a 1-gallon container. It is made by AGCO. Your engine will thank you.
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Perfect For:
This AGCO MultiGuard Diesel Engine Oil is perfect for anyone who needs reliable engine protection. It is a great choice for diesel engines that require SAE 10W-30 API CK-4 oil.
Ready to Purchase?
7. Lucas Oil SAE 15W-40 MAGNUM CK-4 DIESEL OIL,1 GAL (10287)
Get ready to experience the power of Lucas Oil SAE 15W-40 MAGNUM CK-4 Diesel Oil! This oil is designed for a universal fit. It’s made in the United States.
This diesel oil is a great choice. It comes in a 1-gallon container. The package is easy to handle.
With a package weight of just 3.517 kilograms, it’s convenient. Its dimensions are 30.3 H x 9.0 L x 21.4 W centimeters. You will like it.
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Perfect For:
This Lucas Oil is great for diesel engines. It’s a universal fit from the United States.
Ready to Purchase?
8. Triax Fleet Supreme 15W-40 API CK-4 Full Synthetic Heavy Duty Diesel Engine Oil | Moly Boron Friction Modified | Extended Drain (5 Gallon)
Is your truck ready for an upgrade? Triax Fleet Supreme is here to help. It’s full synthetic and built for heavy-duty use. Get ready for better performance now!
This oil has amazing additives. It includes Moly and Nano-Boron. Expect less wear and tear on your engine.
It’s great for long drives. Your engine will thank you.
| Pros | Cons |
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Perfect For:
This oil is perfect for owners of heavy-duty diesel trucks like Ford Powerstroke, Chevy Silverado, and Dodge RAM that need top wear protection and longer drains. It works great for fleet drivers of semis aiming for better MPG and smoother starts in cold weather.
Ready to Purchase?
9. ULTRA 1PLUS SAE 15W-40 Synthetic Blend API CK-4/SN Fleet Diesel Engine Oil (5 Gallon Pail)
Give your engine the ULTRA 1PLUS advantage. This synthetic blend oil is made for diesel engines. It protects your engine and helps it last longer.
This oil provides exceptional wear protection. It also helps with fuel efficiency.
ULTRA 1PLUS meets the latest API CK-4/SN standards. It is great for many diesel engines. Get yours today!
| Pros | Cons |
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Perfect For:
This ULTRA 1PLUS SAE 15W-40 Synthetic Blend API CK-4/SN Fleet Diesel Engine Oil is great for anyone with a diesel engine. It’s perfect for those who want their engine to last longer and run better.
Ready to Purchase?
10. ULTRA 1PLUS SAE 15W-40 Synthetic Blend Heavy-Duty Motor Oil API CK-4/SN – 5 Quart Jug
Want to keep your engine running strong? Get ULTRA 1PLUS 15W-40 Motor Oil. This oil is a synthetic blend for heavy-duty use. It’s perfect for both new and old engines.
This oil improves fuel economy. It also helps you start your engine when it’s cold.
Your engine will last longer with this. This oil is great for extreme conditions.
| Pros | Cons |
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Perfect For:
Need tough oil for your hard-working engine? This is it. ULTRA 1PLUS is perfect for anyone wanting long engine life, better fuel economy, and reliable cold starts.
Ready to Purchase?
Buying Guide
API CK-4 oils are great for diesel engines. They give strong protection against wear. They also reduce soot buildup.
Users Engaging Experiences
One driver said Triax Fleet Supreme 15W-40 cut his oil changes in half. A truck owner loved Ultra 1Plus 5W-40 for smooth long-haul rides. Many users note these oils extend engine life without more money.
- Viscosity Grade: Pick the right thickness like 15W-40 or 5W-40. It fits your engine’s needs well. It works in hot or cold weather.
- Oil Type: Choose full synthetic for top protection. Synthetic blends are good and cost less. They keep engines clean.
- API Rating: Look for CK-4 or higher. It meets new rules for 2017 engines. It gives better performance.
- Extended Drain Intervals: Find oils that let you go longer without changes. This saves time and money. It keeps engines cleaner.
- Wear Protection: Select oils with strong additives. They fight engine wear under load. They boost engine life.
- Fuel Efficiency: Go for oils that cut fuel use. They lower costs on drives. They keep pressure steady.
- Compatibility: Check if it fits your truck brand. It works with filters like DPF. It handles soot and emissions.