3.6 Pentastar High Mileage Life Expectancy: Is It a Good Engine?

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When buying any car recently, longevity is one question that people always ask. Cars are becoming more expensive than ever, and everyone needs closure on what the average life of the car is

In the case of an engine, the same questions are asked, especially when you’re hitting the market for a used one.

If you’re wondering about the 3.6 Pentastar engine’s life expectancy and want to know the best oil lubricant that goes with it, then you’re in the right place.

What is the 3.6 Pentastar V6 Engine?

The 3.6L Pentastar V6 is a 3.6L six-cylinder gasoline engine first introduced in New York at the 2009 New York Auto Show. It was designed to be used for the 2011 Dodge, Chrysler, and Jeep vehicles. The 3.6 Pentastar is one of the most advanced V6 engines, and as a result, has earned trust with popular car brands out there. This Pentastar engine was on the top 10 engines in the US market for three consecutive years. 

This powerhouse is rated at 305 horsepower, 270lb-ft. However, there’s more to the engine than these numbers can tell. It features brilliant engineering and impeccable craftsmanship that fosters unrivalled output and, most importantly, longevity in service. The engine is smaller, more fuel-saving, lighter, and more potent than its 3.5L predecessor.  Moreover, it has a die-cast aluminium high-pressure cylinder block that has a 60-degree V-angle between cylinder banks. In addition, the cylinders have cast-iron liners that are meant to make them last longer. 

Approximately 90% of max torque is achieved within the 1800-6350 rpm range. Above all, you get smooth operation and high efficiency at any rpm. 

The Pentastar is still a pretty solid engine and would make a quality engine choice even in the few years to come. 

What is the 3.6L Pentastar Life Expectancy?

You might be wondering how many miles you might tally on the 3.6L Pentastar before encountering real big trouble. Or, you might be in the market for a used vehicle with the Pentastar engine and would like to know the number of miles left before experiencing engine problems? Then stick around; the next section has you covered. 

Pentastar engines are known to be pretty much bulletproof. However, like all other engines, they share a few downsides here and there. However, on average, a 3.6L Pentastar engine can go for over 200,000 miles without experiencing a severe problem. What mainly determines the life expectancy of an engine:

  • How good/bad the engine is used
  • Routine service
  • Maintenance practices.

Most people out there define the Pentastar as a high mileage engine. But, what is a high-mileage engine?

The average mileage of an average car for a year should be around 12,000-15,000 miles. Anything above is high mileage. With proper maintenance, your vehicle can hit more than 200,000 miles. High-mileage engines come with their set of advantages and disadvantages. Nonetheless, they are generally better than their low-mileage counterparts. 

What cars have the 3.6 Pentastar?

The 3.6L is an undoubtedly high-efficiency engine. As a result, the engine has gained popularity among several high-end sports cars. Here’s a list.

  • 2011-present Chrysler 300
  • 2016-present Chrysler Pacifica
  • 2020-present Chrysler Voyager
  • 2011-present Dodge Challenger (GT, SXT Rallye Edition, SXT+ models)
  • 2011-present Dodge Charger (GT, SXT Rallye Edition, SXT+ models)
  • 2011-present Dodge Durango (Limited GT, Citadel, Crew, Crew Lux, Express, SXT, and ACT Plus models)
  • 2020-present Jeep Gladiator
  • 2011-2015 Jeep Grand Cherokee
  • 2012-2018 Jeep Wrangler JK
  • 2019-present Jeep Wrangler JL
  • 2012-present Ram 1500
  • Ram 1500 Classic
  • 2013-present Ram ProMaster

What oil does a 3.6 Pentastar take for the best longevity?

A 3.6 Pentastar engine needs 5W-20 oil for proper functioning. However, the engine can also take 5W-30 oil, depending on the conditions you will encounter during driving. So then, why is the 5W-20 a better oil substitute for the 5W-30 in the 3.6 Pentastar?

Castrol 03084C Edge 5W-30

Castrol 03084C Edge 5W-30

Pennzoil Full Synthetic 5W20

Pennzoil Full Synthetic 5W20

Here’s a little breakdown of what these figures mean. It will help you strike the difference between the two and why the 5W-20 is the better choice. The number before the ‘W’ represents the viscosity/thickness of the oil at low temperatures. The other number, to the right, represents the oil’s viscosity when the engine is operating under average temperature. From that information, you can conclude that the 5W-20 is thinner than the 5W-30 at normal operating temperatures. That translates to a less viscous drag during operation, which is a plus for fuel economy. The thinner 5W-20 provides better lubrication in cold conditions as well.

You may also ask yourself, what is the 3.6 Pentastar oil capacity?

The 3.6 Pentastar requires 6 quarts of new 5W-20 oil change during a filter replacement. So here’s a quality oil refill for your 3.6 Pentastar that has been branded the best by most users. It’s the Pennzoil Ultra Platinum Full Synthetic Motor Oil

The oil is not developed from crude oil, like most other oils, but natural gas. It also acts as a cleaning agent, as it helps eliminate any dirt from your pistons. A cleaner engine translates to better fuel economy in the long run.

Pennzoil Full Synthetic 5W20

Pennzoil Full Synthetic 5W20


  • Seafoam works for all automobiles, including snowmobiles, lawnmowers, cars, and bikes
  • Adhesive lubricating points accelerate cold engines
  • The exterior design adjusts with the arched edge of a car to prevent oil leaks or spills. The bottle’s narrow top also prevents gushing for easy use
  • You can use the cleaner in three ways: In the fuel tank, Diesel fuel filter, and Crankcase


  • Over-using seafoam will cause damage


1. How Much Horsepower Can a 3.6 Pentastar Handle?

305hp, 270 lb-ft. The 3.6 Pentastar can handle 305 horsepower and 270 lb-ft torque.

2. How Much Boost Can a 3.6 Pentastar Handle?

10-12 lbs. The 3.6 Pentastar is a powerful engine and can handle a pretty massive boost compared to its competitors. It can safely handle 10-12 pounds of boost!


From the information in this article, you can see how the 3.6 Pentastar is a pretty good engine choice, especially when performance and longevity are your things. However, you might need a reminder that the lifespan of an engine solely depends on you as the driver. Therefore, it would be best to be cautious enough not to overwork your engine and service it regularly.

Bonus: What’s The Ford V10 Life Expectancy?

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