Are you looking for the best API CK-4 oils for your diesel engine?
This quick, user-friendly guide provides a simple list of the top CK-4 oils to help you choose the right one for your truck.
API CK-4 oils keep diesel engines strong and clean. They cut down on wear and boost fuel savings. Switching to this grade means fewer oil changes.
Many drivers trust these oils for tough jobs. They share stories of smoother rides and longer engine life.
Pick the right CK-4 oil for your truck. It fights soot and stays tough in heat. Feel the power with top brands like Lucas and Triax.
List of Top 10 API CK4 Oils
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Lucas Oil 10287 SAE 15W-40 API CK-4 Heavy Duty Motor Oil – 1 Gallon |
This heavy duty motor oil is perfect for truck drivers and fleet owners who push their engines hard every day. It gives you longer engine life, lets you go longer between oil changes, and cuts down on filter swaps. |
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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 motor oil is perfect for owners of heavy-duty diesel engines in trucks, buses, and construction machines that run on highways or off-road. It suits both new 2020 models and older ones that need strong protection against wear and emissions. |
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ULTRA 1PLUS SAE 5W-40 Full Synthetic Heavy-Duty Diesel Engine Oil – 5W 40 Motor Oil API CK-4/SN (5 Gallon Pail) |
Want to keep your engine running like new? ULTRA 1PLUS SAE 5W-40 is perfect for owners of heavy-duty diesel engines. It’s the smart choice for lasting protection and peak performance. |
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ULTRA 1PLUS SAE 15W-40 Synthetic Blend API CK-4/SN Fleet Diesel Engine Oil (5 Gallon Pail) |
Ideal for fleet operators and owners with heavy-duty diesel engines who need long engine life. This oil provides strong wear protection, better cold-start performance, and improved fuel efficiency, helping trucks, buses, and equipment run smoothly with fewer shop visits. |
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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 oil is perfect for farmers and fleet operators who run tractors, harvesters, trucks, and other heavy diesel machines. It gives strong wear protection and helps engines stay cool and reliable for long work days. |
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Triax Fleet Supreme ESP 5W-40 API CK-4 Full Synthetic Heavy Duty Diesel Engine Oil | Moly Boron Friction Modified | Extended Drain (1 Gallon) |
This diesel engine oil is perfect for owners of semi-trucks, heavy-duty pickups like Ford Powerstroke and Chevy Silverado, and fleet operators who drive long miles. It works great in tough diesel engines from brands such as Cummins, Detroit Diesel, or Duramax. |
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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 drivers, construction crews, and anyone with heavy-duty diesel engines who want to keep their vehicles running stronger and longer. It saves time on oil changes and cuts down on soot buildup and filter cleaning. |
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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, Dodge RAM, and GMC Sierra. It suits truckers who tow, haul, or drive long miles and need top wear protection and long drain intervals. |
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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 (4 Gallon Pack) |
This heavy-duty diesel engine oil is perfect for owners of diesel pick-up trucks like Ford Powerstroke, Chevy Silverado, Dodge RAM, and GMC Sierra. It’s also ideal for drivers of highway trucks and anyone wanting better fuel economy, extreme wear protection, and longer drain intervals for their engines. |
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Castrol Vecton Long Drain 10W-30 CK-4 Part Synthetic Diesel Engine Oil, 1 Gallon Jug |
Castrol Vecton Long Drain 10W-30 is perfect for truck drivers and fleet owners who drive long miles in heavy-duty diesel engines. It lets you change oil less often, up to 80,000 miles, so you save time and money. |
Detailed Reviews
Looking for the best API CK-4 oils for your engine? We’ve analyzed top choices, blending expert insights and real customer feedback. Find the oil that fits your needs, focusing on performance and value. Our guide will help you choose the perfect oil for your engine’s health.
1. Lucas Oil 10287 SAE 15W-40 API CK-4 Heavy Duty Motor Oil – 1 Gallon
Lucas Oil 10287 keeps your heavy-duty engine running strong. The SAE 15W-40 API CK-4 formula cuts wear on parts. Trucks and buses love this 1-gallon jug.
Switch to this oil for longer engine life. You’ll change oil less often with extended oil changes. Filters stay cleaner for less maintenance.
Grab a jug today and protect your ride. See why drivers trust Lucas Oil!
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Perfect For:
This heavy duty motor oil is perfect for truck drivers and fleet owners who push their engines hard every day. It gives you longer engine life, lets you go longer between oil changes, and cuts down on filter swaps.
Ready to Purchase?
2. Ultra 1Plus SAE 15W-40 Full Synthetic Heavy-Duty Diesel Engine Oil – 15W 40 Motor Oil API CK-4/SN (1 Gallon)
Ultra 1Plus 15W-40 engine oil gives superior protection to diesel engines. It fights wear, deposits, and soot buildup well. This oil keeps engines clean and working smoothly.
It meets API CK-4 rules for high performance. The oil stays strong in hot or tough conditions.
Use this oil for new or old diesel trucks. It cuts down oil use and extends engine life. Get the best protection for your ride today.
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Perfect For:
This Ultra 1Plus motor oil is perfect for owners of heavy-duty diesel engines in trucks, buses, and construction machines that run on highways or off-road. It suits both new 2020 models and older ones that need strong protection against wear and emissions.
Ready to Purchase?
3. ULTRA 1PLUS SAE 5W-40 Full Synthetic Heavy-Duty Diesel Engine Oil – 5W 40 Motor Oil API CK-4/SN (5 Gallon Pail)
Keep your heavy-duty diesel engine running smoothly with ULTRA 1PLUS SAE 5W-40 Full Synthetic Motor Oil. It extends engine life and saves fuel.
This oil protects emission systems and offers superior high-temperature performance. It also exceeds the latest diesel engine standards.
ULTRA 1PLUS provides outstanding wear protection. It is designed for your heavy-duty diesel engine. This oil keeps your engine running great.
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Perfect For:
Want to keep your engine running like new? ULTRA 1PLUS SAE 5W-40 is perfect for owners of heavy-duty diesel engines. It’s the smart choice for lasting protection and peak performance.
Ready to Purchase?
4. ULTRA 1PLUS SAE 15W-40 Synthetic Blend API CK-4/SN Fleet Diesel Engine Oil (5 Gallon Pail)
ULTRA 1PLUS is a synthetic blend diesel engine oil. It gives extended engine life and better performance.
It provides exceptional wear protection. It reduces friction. Boosts fuel efficiency.
It suits many diesel engines and meets API CK-4/SN standards. This 5-gallon pail is ready to use.
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Perfect For:
Ideal for fleet operators and owners with heavy-duty diesel engines who need long engine life. This oil provides strong wear protection, better cold-start performance, and improved fuel efficiency, helping trucks, buses, and equipment run smoothly with fewer shop visits.
Ready to Purchase?
5. TRIAX Agra Plus ESP 15W-40 CK-4 Synthetic Blend, API Licensed, Ultra High Performance, Friction Modified Diesel Engine Oil, Agricultural Equipment (5 Quart)
Get ready for peak performance with TRIAX Agra Plus ESP 15W-40! This synthetic blend oil is perfect for your farm equipment. It keeps your engine running smoothly and powerfully.
This oil gives you unmatched wear protection. It helps your engine run cooler and stronger.
It’s API licensed and replaces many OEM diesel oils. Choose TRIAX for a cleaner, longer-lasting engine!
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Perfect For:
This oil is perfect for farmers and fleet operators who run tractors, harvesters, trucks, and other heavy diesel machines. It gives strong wear protection and helps engines stay cool and reliable for long work days.
Ready to Purchase?
6. Triax Fleet Supreme ESP 5W-40 API CK-4 Full Synthetic Heavy Duty Diesel Engine Oil | Moly Boron Friction Modified | Extended Drain (1 Gallon)
Triax Fleet Supreme ESP 5W-40 is a full synthetic diesel engine oil that makes engines run quieter. It also lowers operating temperatures and boosts MPG by 4-6 percent. Plus, it outperforms top brands in many ways.
This oil uses Nano-Boron and Moly to reduce wear by up to 68 percent. It has a much lower friction level than other oils for better protection.
It lasts over 100,000 miles for trucks or 30,000 miles for pickups. The oil stays strong even in tough hauling jobs. It works with all major diesel engines like Powerstroke and Duramax.
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Perfect For:
This diesel engine oil is perfect for owners of semi-trucks, heavy-duty pickups like Ford Powerstroke and Chevy Silverado, and fleet operators who drive long miles. It works great in tough diesel engines from brands such as Cummins, Detroit Diesel, or Duramax.
Ready to Purchase?
7. Lucas Oil Synthetic SAE 5W-40 HD Motor Oil API CK-4 1 Gallon (Pack of 4)
Power up your truck with Lucas Oil Synthetic HD Motor Oil. This 1-gallon pack of 4 is ready for tough jobs. It meets the new CK-4 standards perfectly.
Keep your engine running strong for more miles. Switch to this oil and watch the difference.
Drivers love how it cuts down on oil changes. It keeps soot levels low and saves money. Get it now and feel the power.
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Perfect For:
This Lucas Oil Synthetic SAE 5W-40 HD Motor Oil is perfect for truck drivers, construction crews, and anyone with heavy-duty diesel engines who want to keep their vehicles running stronger and longer. It saves time on oil changes and cuts down on soot buildup and filter cleaning.
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)
Triax Fleet Supreme is a top-rated engine oil that makes your diesel truck run better. It helps you get more miles per gallon and keeps the engine quiet.
This oil works great in tough conditions and lasts a long time between oil changes. It protects your engine from wear and keeps it clean inside.
The oil fits all heavy-duty diesels and stops problems like stiction. It keeps filters clear for the best performance.
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Perfect For:
This oil is perfect for owners of heavy-duty diesel trucks like Ford Powerstroke, Chevy Silverado, Dodge RAM, and GMC Sierra. It suits truckers who tow, haul, or drive long miles and need top wear protection and long drain intervals.
Ready to Purchase?
9. TRIAX Fleet Supreme 15W-40 API CK-4 Full Synthetic Heavy Duty Diesel Engine Oil | Moly Boron Friction Modified | Extended Drain (4 Gallon Pack)
Introducing TRIAX Fleet Supreme 15W-40, the ultimate full synthetic diesel engine oil for heavy-duty trucks. This premium oil delivers quieter operation, lower temps, and up to 4-6% better MPG with superb cold starts down to -45°F.
Friction-modified with nano-boron and moly, it cuts engine wear by up to 48% thanks to a low friction level that’s 50% better than rivals. It’s ideal for diesel pickups like Ford Powerstroke, Chevy Silverado, and Dodge RAM. Plus, it handles long drains up to 30,000 miles for Super Duty trucks, keeping engines strong in tough jobs like towing.
Enjoy DPF and SCR protection that keeps filters clean and prevents clogs. TRIAX works with all major engines, including Volvo, Cummins, and Duramax, for top performance.
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Perfect For:
This heavy-duty diesel engine oil is perfect for owners of diesel pick-up trucks like Ford Powerstroke, Chevy Silverado, Dodge RAM, and GMC Sierra. It’s also ideal for drivers of highway trucks and anyone wanting better fuel economy, extreme wear protection, and longer drain intervals for their engines.
Ready to Purchase?
10. Castrol Vecton Long Drain 10W-30 CK-4 Part Synthetic Diesel Engine Oil, 1 Gallon Jug
Castrol Vecton Long Drain 10W-30 CK-4 is a strong part-synthetic diesel engine oil. It fits tough jobs in trucks and machines. It keeps engines running well for a long time.
Drain intervals can go up to 80,000 miles or 1,000 hours. This oil fights oil breakdown and keeps viscosity even in hot conditions.
It meets top standards like API CK-4 and Volvo VDS-4.5. Plus, it’s CO2-neutral through green projects. Choose this oil to save time and cut costs.
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Perfect For:
Castrol Vecton Long Drain 10W-30 is perfect for truck drivers and fleet owners who drive long miles in heavy-duty diesel engines. It lets you change oil less often, up to 80,000 miles, so you save time and money.
Ready to Purchase?
Buying Guide
API CK-4 oils keep diesel engines clean and strong. They cut down on wear and boost fuel savings. Switching to them means fewer oil changes.
Many truck drivers love these oils for hard jobs. One rider shared a story of a smoother drive after using Lucas Oil, saying his engine felt like new. Another fan said Triax kept his bus engine cool during long hauls. A farm owner told how Ultra 1Plus saved him money on fuel.
- API Specification: API CK-4 oils meet strict rules for diesel engines. They fight soot and stay strong in heat. Pick this grade to protect your engine right.
- Viscosity Grade: Grades like 15W-40 work well in many climates. 5W-40 starts easy in cold weather. 10W-30 suits warmer jobs. Choose based on your engine needs.
- Type of Oil: Synthetic oils last longer and clean better. Blends mix synthetic with classic oils for cost savings. Full synthetics give top protection. Pick the type that fits your budget.
- Oil Drain Interval: Long intervals mean fewer changes. Some oils go up to 100,000 miles. Check what your engine maker says. This saves time and costs.
- Wear Protection: Oils with additives like moly cut down on friction. They keep parts strong. Look for ones that lower wear by a lot.
- Fuel Efficiency: Some oils boost MPG by 4-6 percent. They reduce drag in the engine. This saves money on runs.
- Engine Compatibility: Oils work with brands like Cummins or Powerstroke. Check if they fit your truck. Wrong oil can harm parts.
- Brand Reputation: Lucas and Triax have great trust. They make oils that drivers like. Read users’ takes to pick right.
- Packaging and Volume: 1-gallon jugs fit quick swaps. 5-gallon pails suit shops. Buy what you need. Small packs test new oils.
- Special Features: Oils with DPF protection keep filters clean. Friction modifiers add miles. Low-friction types save fuel more.