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Is the 6.4 L V-8 heavy duty HEMI MDS engine gas or diesel?

The 6.4L V-8 Heavy Duty HEMI MDS engine is a gasoline-powered engine, not a diesel engine. This high-performance engine is found in various heavy-duty trucks and SUVs produced by Fiat Chrysler Automobiles (FCA), now part of Stellantis.


What is the 6.4L V-8 Heavy Duty HEMI MDS Engine?


The 6.4L V-8 Heavy Duty HEMI MDS engine is a powerful gasoline engine that features Chrysler's Multi-Displacement System (MDS) technology. MDS allows the engine to temporarily deactivate up to four of its eight cylinders during light-load driving conditions, improving fuel efficiency without sacrificing performance. This engine is known for its impressive power output and towing capacity, making it a popular choice for heavy-duty trucks and SUVs.


Key Features of the 6.4L V-8 Heavy Duty HEMI MDS Engine



  • Displacement: 6.4 liters (392 cubic inches)

  • Configuration: V-8 with overhead valves

  • Fuel type: Gasoline

  • Horsepower: Up to 495 hp

  • Torque: Up to 470 lb-ft

  • Multi-Displacement System (MDS) for improved fuel efficiency

  • Heavy-duty construction for towing and hauling applications


The 6.4L V-8 Heavy Duty HEMI MDS engine is a powerful and versatile gasoline engine that provides excellent performance and towing capacity for heavy-duty trucks and SUVs. Its combination of power, efficiency, and durability make it a popular choice among consumers and automakers alike.

How many miles per gallon does a 6.4 Hemi 2500 get?


12 city and 18 highway MPG
The Ram 2500 is a workhorse and provides an EPA-estimated 12 city and 18 highway MPG across two beastly engines. First is the 6.4L HEMI® V8 engine, which comes standard on the Ram 2500. It's paired with an 8-speed transmission and uses Variable-Cam Timing (VCT) to provide 410 horsepower and 429 lb-ft of torque.



Is the Ram 2500 heavy duty gas or diesel?


The 2024 Ram 2500 Rebel® combines off-roading prowess with rugged capability. It offers gas and available diesel engine options, Bilstein® Gas-Charged Monotube Shocks, skid plates, 33-inch off-road tires, a 16,870-pound maximum gas towing capacity 1 and a 3,140-pound maximum gas payload 2.



What year Ram 2500 diesel to avoid?


General Buying Advice: Avoid The 2013-2018 Model Years
As such, if you're in the market for the most reliable RAM 2500 year, skip the 2013 to 2018 models because they're riddled with reliability woes, recalls, and complaints. For example, the 2013 model year doesn't quite hit the landing in reliability.



Is a Hemi 6.4 L gas or diesel?


gasoline
Fuel Compatibility: The 6.4L HEMI engine is versatile, running efficiently on both 89 and 87 octane gasoline, ensuring that the MDS system supports fuel economy without sacrificing performance.



What fuel is recommended for a 6.4 Hemi?


Like the 6.1L HEMI engine, the newer 6.4L/392 HEMI engine requires premium fuel for best performance.



Is a 6.4 diesel or gas?


The 6.4 Powerstroke engine is one of the most powerful diesel engines on the market today, but it needs regular upkeep and a few modifications to truly come out of its shell. This engine is found on the 2008 to 2010 Ford F-250 pickup truck.



What fuel does Hemi use?


The recommended fuel for optimum performance and fuel economy is 89 octane "Plus" gasoline. The 5.7 Hemi is prone to knock and loses durability and horsepower when run on lower grades of gasoline.



Which Ram is diesel?


A 3.0L EcoDiesel V6 engine is an available diesel engine on the following RAM 1500 truck trim levels: RAM 1500 Limited. RAM 1500 Limited Longhorn. RAM 1500 Rebel.



Is Dodge Ram Hemi gas or diesel?


A hemi can be diesel, or gasoline, or natural gas, or whatever — it is an engine with a hemispherical, or near hemispherical combustion chamber. A HEMI is a semi-hemispherical combustion chambered gasoline-burning V8 engine built by Chrysler.



What is the life expectancy of a 6.4 Hemi?


I've came from GM and generally 250k is a solid life expectancy from a well maintained examples but I can't deny the 6.4 is extremely popular in my area (alot of miners buying them up).


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.