The Most Reliable Engine Type, Ranked

Voting rules: Choose the engine type you think is the most reliable!

Updated on May 4, 2024 06:54

When considering the purchase of a vehicle, the reliability of the engine is a key factor that can influence a decision. As there are numerous types of engines available, each with their own strengths and weaknesses, knowing which ones are deemed most reliable by the majority can be extremely beneficial. This helps potential buyers make informed choices and sets expectations for maintenance and longevity. Through this site, you have the ability to cast your vote and see how others have voted on the reliability of different engine types. By participating, you contribute to a broader community insight, which in turn aids future buyers in making better-informed decisions. Your participation ensures that the ranking reflects a wide range of experiences and preferences, tailored by the real-world usage of vehicles.

What Is the Most Reliable Engine Type?

1

25
votes
Toyota Prius hybrid engine

Toyota Motor Corporation

Known for its reliability, efficiency, and longevity.
The Toyota Prius hybrid engine is a gasoline-electric hybrid engine developed by Toyota Motor Corporation.

Engine Type: Gasoline-electric hybrid

Displacement: 1.8 liters

Fuel Efficiency: Up to 58 MPG combined

Total System Horsepower: 121 hp

Torque: 105 lb-ft
2

37
votes
Honda Civic natural gas engine

Honda

This engine is one of the most reliable in the industry, with some lasting over 300,000 miles.
The Honda Civic natural gas engine is a type of engine produced by Honda that is designed to run on compressed natural gas (CNG). It is a reliable and efficient engine that offers several advantages in terms of emissions and fuel economy.

Type: Natural gas engine

Fuel Type: Compressed Natural Gas (CNG)

Displacement: 1.8 liters

Number of Cylinders: 4

Compression Ratio: 12.5:1
3

24
votes
Subaru Outback 2.5L engine

Subaru Corporation

This engine has a reputation for reliability, earning it a spot on the list of the best engines ever made by WardsAuto.
The Subaru Outback 2.5L engine is a horizontally opposed four-cylinder engine, commonly known as a Subaru Boxer engine, and is specifically designed for the Subaru Outback model. It is known for its reliability, efficiency, and performance.

Engine Type: Horizontally opposed four-cylinder

Displacement: 2.5 liters

Compression Ratio: Low- to mid-compression

Valvetrain: Double overhead camshaft (DOHC)

Power Output: Approximately 175 horsepower
4

21
votes
Mazda MX-5 Miata engine

Mazda

This engine is renowned for its durability and reliability, making it a favorite among sports car enthusiasts.
The Mazda MX-5 Miata engine is a lightweight and high-revving four-cylinder engine specifically designed for the Mazda MX-5 Miata sports car. It is known for its reliability, performance, and smooth power delivery.

Engine Type: Inline 4-cylinder

Displacement: 2.0 liters

Horsepower: 181 hp

Torque: 151 lb-ft

Compression Ratio: 13:1
5

19
votes
Ford F-150 3.5L EcoBoost engine

Ford Motor Company

This engine is known for its power and reliability, making it one of the best-selling trucks in America.
The Ford F-150 3.5L EcoBoost engine is a turbocharged gasoline engine designed for the Ford F-150 pickup truck. It is known for its combination of power and fuel efficiency, providing an optimal balance for both work and everyday driving.

Engine Type: Turbocharged V6

Displacement: 3.5L

Horsepower: 375 hp

Torque: 470 lb-ft

Fuel Injection: Direct Injection
6

14
votes
Chevy Silverado 5.3L engine

General Motors

This engine has a long history of reliability, making it a favorite among truck enthusiasts.
The Chevy Silverado 5.3L engine is a powerful and reliable V8 engine commonly used in Chevrolet Silverado pickup trucks. It is known for its durability and performance.

Engine Type: V8

Displacement: 5.3 liters

Horsepower: 355 hp

Torque: 383 lb-ft

Fuel Delivery System: Direct Injection
7

14
votes
Dodge Ram 5.7L HEMI engine

Dodge

This engine is known for its power and reliability, earning it a spot on the list of the best engines ever made by WardsAuto.
The Dodge Ram 5.7L HEMI engine is a powerful and efficient internal combustion engine primarily used in Dodge Ram trucks. It is known for its reliability, performance, and distinctive HEMI V8 sound.

Engine Type: V8

Displacement: 5.7L

Cylinder Configuration: Pushrod V8

Horsepower: 395 hp

Torque: 410 lb-ft
8

6
votes
BMW 3.0L inline-six engine

This engine is known for its smooth performance, high efficiency, and durability.
The BMW 3.0L inline-six engine is a highly regarded and reliable engine that is widely praised for its performance and smooth operation. It has become synonymous with BMW luxury vehicles and is known for its power, refinement, and durability.

Displacement: 3.0 liters

Cylinder Configuration: Inline-six

Valvetrain: DOHC (Dual Overhead Camshaft)

Fuel Injection: Direct Injection

Power Output: Varies depending on configuration, typically ranges from 255 to 405 horsepower
9

14
votes
Mercedes-Benz 3.0L V6 diesel engine

Mercedes-Benz

This engine is known for its reliability and fuel efficiency, making it a popular choice among luxury car buyers.
The Mercedes-Benz 3.0L V6 diesel engine is a high-performance engine designed for efficiency and durability. It offers a powerful yet smooth driving experience with impressive fuel economy. This engine is commonly found in Mercedes-Benz vehicles and is known for its reliability in delivering consistent performance.

Engine Type: V6

Displacement: 3.0L

Fuel Type: Diesel

Power Output: Varies depending on specific model and year

Torque: Varies depending on specific model and year
10

9
votes
Porsche 911 flat-six engine

Porsche

This engine is known for its power, durability, and longevity, making it a favorite among sports car enthusiasts.
The Porsche 911 flat-six engine is a horizontally-opposed six-cylinder engine that is commonly used in various Porsche 911 models. It is renowned for its reliability, performance, and distinctive sound.

Engine Type: Flat-six

Cylinder Configuration: Horizontally-opposed

Displacement: Varies based on model

Maximum Power: Varies based on model

Maximum Torque: Varies based on model

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Ranking factors for reliable engine type

Engine Design

The design of the engine plays an important role in its reliability. An engine with a simple design, fewer moving parts, and more robust components tends to be more reliable.
Maintenance

The level of maintenance required for an engine type is critical to its reliability. Engines that require frequent maintenance tend to be less reliable than those that need less maintenance.
Manufacturing Quality

The quality of manufacturing also plays an important role in engine reliability. Engines produced with higher quality control standards tend to be more reliable.
Technology

Advanced engine technology can contribute to increased engine reliability. For instance, engine materials, electronic sensors, and computer-controlled systems can improve an engine's reliability.
Durability

The overall durability of an engine type is a critical factor in its reliability. Engines that have a longer lifespan and can endure higher mileage without breaking down tend to be more reliable.

About this ranking

This is a community-based ranking of the most reliable engine type. We do our best to provide fair voting, but it is not intended to be exhaustive. So if you notice something or type is missing, feel free to help improve the ranking!

Statistics

3127 views
182 votes
10 ranked items

Voting Rules

A participant may cast an up or down vote for each type once every 24 hours. The rank of each type is then calculated from the weighted sum of all up and down votes.

More information on most reliable engine type

Background Information: Understanding Engine Types When it comes to automobiles, the engine is the heart of the vehicle. It is responsible for turning fuel into power, which propels the car forward. Engines come in different types, each with its own set of advantages and disadvantages. The most common type of engine is the internal combustion engine (ICE), which is powered by burning fuel and air inside the engine. There are two types of ICE engines: gasoline and diesel engines. Gasoline engines use spark plugs to ignite the fuel, while diesel engines use compression to ignite the fuel. Another type of engine is the electric motor, which uses electricity to power the vehicle. Electric cars have become increasingly popular in recent years due to their efficiency and eco-friendliness. Hybrid engines combine an ICE engine with an electric motor, allowing for improved fuel efficiency and reduced emissions. Ultimately, the most reliable engine type depends on a variety of factors, including the vehicle's intended use, maintenance, and personal preference. At StrawPoll, we host thousands of polls and rankings on various topics, including automotive, so be sure to check out our rankings to see what our users think is the most reliable engine type.