How to Improve Gas mileage on 6.4 Hemi

The 6.4 HEMI engine is famously known for its incredible power and ability to get you wherever you want to go quickly. It delivers 475 hp with the potential to travel at high speeds through any terrain thanks to its 395 lb-ft of torque. This is a truck that can tow anything you can load into it, but did you know that when it comes to gas mileage the 6.4 hemi falls short?

The 6.4L Hemi engine uses a lot of fuel, specifically gasoline. There are many factors which could impact the fuel consumption of your car engine. However, how much fuel you use varies depending on how you drive. For example, if you have a heavy foot on the gas and don’t know how to steps on the breaks in order to reduce your speed, it may cause the car to use extra fuel.

It is possible to save fuel consumption of 6.4 Hemi engine. The vehicles with 6.4 Hemi engine consume a lot of gas due to their displacement and enhanced engine power which makes them better than other variants of the same make and engine type. If you want to conserve the fuel for your car, you can opt for improving its efficiency in the following ways.

Are you interested in improving gas mileage on 6.4 hemi? If so, you’re in the right place. I’ve written a detailed article that explains everything you need to know on how to improve gas mileage on 6.4 hemi.

What is a 6.4 Hemi?

The 6.4 HEMI engine is a very powerful engine developed by Chrysler and Dodge. And it features an all-new cylinder head design which delivers superior air intake and exhaust flow when used with variable valve timing.

The 6.4 L Hemi engine is one of the most powerful diesel engines ever built by Chrysler. The 6.4 L diesel produces 500 horsepower and 935 lb-ft at 2000 rpm. The 6.4L diesel has the most torque and power of any naturally aspirated diesel ever built by Chrysler, and is comparable to the previous generation supercharged Dodge Cummins models.

6.4 Hemi Engine Efficiency and Mileage

The 6.4L HEMI® V-8 engine delivers renowned HEMI performance technology and efficiency with best-in-class V-8 fuel economy of 15 city/23 highway1. It’s powered by Pentastar® 3.6L VVT V-6 engine, an EPA-estimated 24 MPG hwy1 in the Charger and Challenger SXT, delivering 160 horsepower and 184 foot pounds of torque.

Some say that the Hemi engine is the greatest engine ever built. Created for racing, the hemi engine has over 300 hp and 350 ft lbs of torque from a 430 cubic inch displacement. While fun to drive and powerful, Hemi engines are notorious for poor gas mileage. In fact, they get 12 to 15 mpg in town and 14 to 20 on the highway. However, there are a few things you can do to improve your Hemi car or truck’s gas mileage.

Tips to improve gas mileage on 6.4 Hemi 

The Hemi engine is one of a kind. The 5.7 liter supercharged engine has changed the way we think about horsepower and fuel economy. The HEMI engine requires very special care and attention to maintain optimal performance.

Over time your Hemi can become tired and require some form of maintenance to keep running at its best. Understanding how to properly care for a HEMI will pay off in the long run by keeping it running longer and more efficiently.

One important factor that plays a role in increasing your gas mileage, is understanding how the HEMI engine works.

Engine Oil for 6.4 Hemi

According to the old saying: ”Time is money”. But it is also true that “Time is oil”! No matter how fast your car engine can go, without enough oil it will soon destroy itself. Therefore, it is vital to learn which is the best engine oil for 6.4 hemi engine if you care about your car and saving time and money you spent on engine repairs. In this article I will introduce you to the tips on maintaining your car, 8 secrets on gas mileage and what oil to use with 6.4 hemi engine.

Chrysler Group recommends that 6.4 hemi engine users use their recommended 0W-40 oil with the vehicle to ensure maximum performance and durability of your engine. It’s common for vehicle owners to go away from OEM recommendations and purchase a lower cost oil brand. Research shows that doing this can actually void your warranty and even cause your engine to fail prematurely.

Tune up your 6.4 Hemi Engine

In order to improve gas mileage, you have to tune up your engine and replace the spark plugs. Your car doesn’t run like it used to? Although it is well maintained, you have noticed that your fuel consumption has increased? What could be the cause?

There are a number of reasons why this happens. A worn out spark plug could be one of them. Here is a look at how to make tuning spark plugs a common practice in your personal garage, which will not only give you better gas mileage, but also help your car run smoothly.

This can be due to various factors such as failing oxygen sensors, bad computer programming or even just simply due to increased speed and load on a long trip.

Check Tires Pressure

Need more fuel economy? Check your tires. If they’re under-inflated, you could lose up to 10 percent of your fuel economy. Here’s what you can do to keep yourself car-care savvy.

If you own a 6.4 liter hemi engine and want to get better gas mileage then you’re going to need to check your tires. You see, the tires on your vehicle are responsible for about 2% of your fuel use (or MPG).

Improving traction does less for your car than reducing drag, so it’s important for you to make sure that the tires you have on the vehicle are rated correctly and that they’re inflated to the manufacturer’s recommended levels.

Your car’s a lot more than just an engine. It’s a crucial part of your lifestyle, and it’s what you drive to work, the grocery store or the soccer field. That means caring for your car is important. The way you care for your car can affect its overall fuel economy, so it pays to stay on top of it.

To maintain your fuel economy, pay attention to how much air pressure is in your tires. The right tire pressure will keep you from losing horsepower, but under-inflated tires also reduce fuel economy by up to 10 percent. When you’re not driving around with low air pressure, be sure to have your tires rotated every 6 months.

When you’re changing your tire’s air pressure, release some of the pressure first. Then let the valve sit until it’s completely open before turning it back on completely and adding any extra pressure that might be lost during inflation.

Vehicle and Weight Luggage

You probably don’t think about how much gas your car uses every time you fill up. But what you do and don’t put in your trunk counts.

Luggage, in particular, can have a big effect on fuel economy. A set of golf clubs might use up more room than you think, and a bunch of books or groceries is going to take up a lot more room than that. If you’re not sure what to bring on vacation, try putting together a list of essentials and then adding items that fit into every day life — things like toiletries, snacks and drinks, work clothes, etc.

Weight also matters when it comes to gas mileage. The more stuff you put in the back of your car, the less efficient it will be.

Clean or Replace Air Filter

A dirty air filter might be the culprit responsible for a vehicle’s poor fuel efficiency. A clean air filter will provide a boost in performance, especially in HEV or hybrid vehicles.

It’s common knowledge that replacing your vehicle’s air filter increases fuel efficiency. The real question is how much?

While some say it adds up to 5 percent, most experts agree that the best result is about a 10-percent gain, which ends up costing about $50 per year for a high-mileage driver.

A lot of people are under the impression that a dirty air filter will force your car to waste fuel, because it won’t be able to pass any air through the engine. However, that’s not exactly true. Air filters don’t just catch dust, they also catch dirt and debris like leaves and pine needles, which can cause damage to the engine.

Clean air filters help prevent that damage by catching more of the foreign particles early in the engine’s life before they have time to do damage.

The best way to clean your air filter is by vacuum sucking it off with an attachment called a blower brush or turbo separator. Then use compressed air to get it really clean before reattaching it to the vehicle.

Efficient Driving

You can boost your fuel economy by driving the way you would if you were pushing a hemi. That means using your brakes sparingly, maintaining proper tire pressure and driving smoothly. The less you use your brakes, the more efficient they will be. Engaging them wastes energy and can make your stopping power inadequate.

You can also save on gas mileage by following these rules:

  • Avoid hard acceleration (which causes a lot of friction) – especially up hills or when pulling out of a parking space.
  • Use cruise control at 65 to 70 mph if possible.

Make sure your truck’s engine is tuned properly. The 6.4 hemi (diesel) engine has many advanced features that take some time to get used to, and it’s important to learn how your vehicle handles before you make major changes.

Use engine braking when you need to stop in a hurry. When operating at low speeds, a lot of people tend to coast instead of using engine braking, which can result in unnecessary wear on the drive train and reduce fuel economy as well.

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