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How Much Oil Does A 6.7 Cummins Take

When it comes to picking out the perfect pickup truck, you’ll always hear the names Ram and Chevy mentioned. They both make great trucks, but one stands head and shoulders above the rest. Its most powerful engines, the 6.7 L Cummins Turbo Diesel and 5.9 L V8 Gasoline can produce up to 400 horsepower and 1,000-pound feet of torque. How much fuel does it take to get these monsters running? We did extensive research, and here are our findings.

For a 1,000-pound truck, the 2010 or later 6.7 L Cummins diesel requires about 12 quarts of motor oils. Earlier models may require slightly less. It’s important to check your vehicle’s manual for the exact requirements.

If you’re interested in learning more about the 6.7 Cummin, stick around as we discuss relevant subjects like the best diesel oils for the 6.7, the issues that the six-cylinder diesel has, and the models that come equipped with this powerful motor. Let’s dive right in!

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Can the Cummins 6.7 take any kind of oil?

For wintertime, use 15W-40 motor lubricant; however, for summertime, use 5W-40 motor lube.

Which engine oil is better, 15W-40 or 5W-40?

The simple answers to these questions would be their viscosities. When you look up the engine oils’ types, the numbers located on the left side of the “W” refer to the viscosities at low temperatures, and the numbers located on the right side of the “W” are larger than the ones on the left side, indicate the viscosities at high temperatures.

A viscous liquid is thick and sticky. Due to its internal engine specifics, each engine requires a different type of oil. Motor oil is typically made from either a mineral or synthetic based oil. Motor oil also contains additives to enhance its quality and performance.

What Are The Best Engine Oil Brands For The 6.7 Cummins?

Full synthetic Shell Rotella 5W-40 diesel engine oil

Synthetic oil provides superior performance and protection for your diesel truck. It uses advanced technologies to keep your diesel running smoothly and efficiently.

With the Rotella T6 Triple Protectant, you get the best results when used with turbos. A review in the Cummins forum states, “The Rotella T6 Triple protects against corrosion, oxidation, and wear.” Corrosion is an attack by oxygen on metal surfaces; oxidation occurs when iron rusts, and wear happens when parts rub together.

Synthetic Blend 15W 40 Shell Rotella T 5 Diesel Engine Oil

The Shell Rotella® T5 is a close cousin of the Shell Rotella® T6 but is made from a synthetic base. It offers superior fuel efficiency, engine performance, and engine durability compared to its natural counterpart. It also includes Shell’s Triple Protections™ technology for maximum engine safety.

It works well with any engine, including ATVs, lawnmowers, tractors, and even chainsaws!

Premium Blue Extreme SAE 5W-40 Full Synthetic Diesel Oil

With its high performance at low temperatures, Valvoline Premium Blue provides excellent value for motorists who need to drive their vehicles in cold weather conditions.

This motor lubricant protects the engine from cold weather and helps prevent excessive friction and wear. It also has good long-term stability and high viscosity index ratings.

Diesel Truck Full Synthetic Motor Oil 5W-40 by Mobil 1

Designed for use in high-temperature environments, Mobil 1 Turbo Diesel is ideal for driving in snowy regions.

Its formula helps prevent the formation of sludges and prevents other kinds of damage. And because it has an easy starting ability, especially in cold temperatures, it reduces wear and tear on the engines.

Are there any issues with the 6.7 Cummins engine?

The 6.7L Cummins is an engine that produces 400 horsepower and 1000 pound-feet of peak output. To produce that level of power requires a significant amount of energy and moving components.

There are several common problems that the 6. 7 Cummins can experience. Let’s take a look at them.

Head Gasket Problems

Head Gasket Repair is one of those problems that are often overlooked until they’re too late. While it may not happen very often, if you do find yourself dealing with a blown head gasket, you should know how to handle it properly so that you don’t end up spending thousands of dollars fixing something that could’ve been avoided.

If the cylinder heads fail, there could be several reasons why this happens. One reason for this is the high amount of power produced by the engines. When the cylinders heat up, they expand, which puts pressure on the piston rings and the cylinder walls. This can lead to cracks in the wall and even the ring seals. Another possibility is that coolants can leak into the combustion chamber, causing coolant burns.

If you notice any of these symptoms, you may be experiencing a problem with your car’s engine’s cylinder heads.

EGR Cooler Problems

EGR means Exhaust Gas Recirculating. It’s a technique used by diesel trucks to reduce emissions. The 6.7 L Cummins is prone to this problem.

Problems with the EGR cooler usually occur on trucks with high miles (over 100,000). Symptoms of an EGR cooler problem may include a low coolant tank, white smoke coming from the tailpipe, and coolant leaking out.

If cleaning the EGR (exhaust gas recirculation) system temporarily stops the problem, it’s usually better to just replace the entire unit rather than clean it again.

Turbocharger Problems

Turbine engines usually get damaged when they run for too long at high speeds. Their parts wear out quickly, so they need to be replaced regularly.

Turbine problems usually happen early on in the life cycle of an automobile. Oil leaks and bearing wear can be caused by the high RPMs that the 6.7 Cummins runs on.

If you notice any of these symptoms, they may indicate that your turbochargers need some TLC.

If you see any of these signs on your car, it’s time to get an oil change and/or replacement parts for your car. A new replacement part may cost anywhere from $1,000 to $2,000. An oil change costs between $50-$100, depending on where you go.

DPF Clogging

Now, this is an important issue for a 6.7L Cummins engine. DPFs stand for “dieser Partikelfilter” (German) or “particule filtre pour les moteurs à combustion dérivée” (French). The filter captures and holds soot coming from the exhaust line to reduce diesel emissions. This filter, however, has only a limited capacity. When the soots reach a certain level, the filter must be regenerated.

When there’s an issue with your DPF system, one of the first things you’ll probably see is that your engine may be running slower than usual. Other signs include longer cranking times and engine fault codes appearing on your dashboard.