The Most Reliable Engine Ever Made, Ranked

Choose the engine you think is the most reliable!

Author: Gregor Krambs
Updated on May 27, 2024 07:23
When considering purchasing a vehicle, knowing which engines stand the test of time can significantly influence decision-making. Reliable engines not only save owners from frequent repairs but also enhance the overall value of the vehicle. This is why compiling a list of the most dependable engines is essential. Through collective user votes, this list is constantly updated to reflect real-time public opinion on engine reliability. Each vote helps refine and perfect the rankings, ensuring that potential buyers have access to the latest and most accurate information. Your participation by voting is crucial in helping everyone make informed choices.

What Is the Most Reliable Engine Ever Made?

  1. 1

    Chevrolet Small-Block V8

    A series of V8 engines known for their simplicity, reliability, and widespread use.
    • Production Years: 1955-present
    • Application: Various Chevrolet models, hot rods
  2. 2

    BMW M57

    A 3.0-liter turbocharged diesel engine known for its efficiency and durability.
    • Production Years: 1998-2013
    • Application: Various BMW models
  3. 3

    Mercedes-Benz OM617

    A 3.0-liter turbocharged diesel inline-5 engine celebrated for its reliability and endurance.
    • Production Years: 1974-1985
    • Application: Mercedes 300D, 300TD
  4. 4

    Honda F20C

    A 2.0-liter DOHC VTEC 4-cylinder engine known for its high power output and reliability.
    • Production Years: 1999-2009
    • Application: Honda S2000
  5. 5

    Lexus 1UZ-FE

    A 4.0-liter V8 engine noted for its smooth operation and durability.
    • Production Years: 1989-2004
    • Application: Lexus LS 400, SC 400
  6. 6

    Cummins 6BT

    A 5.9-liter inline-6 turbo diesel known for its robustness and longevity.
    • Production Years: 1984-present
    • Application: Dodge Ram, commercial vehicles
  7. 7

    Ford Barra

    An inline-6 engine that has gained a cult following due to its durability and tuning potential.
    • Production Years: 2002-2016
    • Application: Ford Falcon, Territory
  8. 8

    Volkswagen Type 1 (Beetle) Engine

    An air-cooled flat-four engine known for its simplicity and reliability.
    • Production Years: 1936-2003
    • Application: Volkswagen Beetle, Bus
  9. 9

    Mitsubishi 4D56

    A 2.5-liter turbocharged diesel engine known for its reliability and widespread use in various applications.
    • Production Years: 1986-present
    • Application: Mitsubishi Pajero, L200
  10. 10

    Toyota 22R-E

    A naturally aspirated 2.4-liter 4-cylinder engine known for its simplicity and durability.
    • Production Years: 1981-1997
    • Application: Toyota Pickup, 4Runner

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About this ranking

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


  • 1 votes
  • 10 ranked items

Voting Rules

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

Additional Information

More about the Most Reliable Engine Ever Made

Chevrolet Small-Block V8
Rank #1 for the most reliable engine ever made: Chevrolet Small-Block V8 (Source)
Engines power the world. They move cars, planes, boats, and even some homes. A reliable engine means less worry and more trust. Reliability in an engine comes from many factors. These include design, materials, and the way they are put together.

Engine design is key. A good design means fewer parts that can break. Simple designs often work best. They are easier to fix and maintain. Engineers work hard to make sure each part fits well with others. This reduces wear and tear over time.

Materials matter too. Strong metals last longer. They resist heat and pressure better. This means the engine can run for many hours without problems. Some engines use special alloys. These are mixes of different metals. Alloys can be stronger than pure metals.

The way an engine is built also affects its reliability. Skilled workers make sure each part is perfect. They use precise tools to check their work. This means the engine will run smoothly. Factories that build engines have strict quality controls. They test each engine before it leaves the factory. This helps catch any problems early.

Maintenance is important for engine reliability. Regular checks can find small issues before they become big problems. Changing the oil and filters keeps the engine clean. Clean engines run better and last longer. Some engines are easier to maintain than others. They have parts that are easy to reach and replace.

Engines that run at a steady speed often last longer. This is because changes in speed can cause stress. Engines in cars face this problem. They start, stop, and change speeds often. Engines in planes or boats often run at a steady speed. This helps them last longer.

Cooling systems help keep engines reliable. Engines get hot when they run. Too much heat can cause damage. Good cooling systems keep the temperature down. This helps the engine last longer. Some engines use air to cool down. Others use liquid. Both systems can work well if designed properly.

Fuel quality also affects engine reliability. Clean fuel burns better. It leaves less dirt inside the engine. This means fewer problems over time. Using the right fuel for the engine is important. Some engines need high-quality fuel. Others can use lower-quality fuel.

Many reliable engines have a long history. They have been tested over many years. This helps engineers learn what works best. They can make changes to improve the design. Over time, these engines become more reliable.

In summary, a reliable engine needs a good design, strong materials, and careful construction. Regular maintenance helps keep it running well. Steady speeds, good cooling, and clean fuel also play a role. With these factors in place, an engine can run for many years without problems.

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