AUTONEWS

Cummins launches first gasoline engine in 106 years of history

Cummins has been building diesel engines for many years and, in the US, it is one of the three main manufacturers for American brand trucks, where you choose the engine you want to use (Detroit Diesel and Caterpillar too).

The Cummins B6.7 Octane engine is specifically designed and developed for the medium-duty market while achieving 2027 EPA and CARB compliance. Expanding the legacy of the Cummins B-series platform, the B6.7 Octane is equipped with the power, durability and performance of diesel with the simplicity of gasoline.

The Cummins B6.7 Octane – Cummins’ first gasoline-powered engine is purpose-built to deliver the highest durability of any medium-duty gasoline engine on the market. The line Octane offers the familiar, serviceable and user-friendly qualities found in gasoline engines, while also providing the performance of diesel at a low total cost of ownership thanks to longer maintenance intervals and improved fuel economy.

In addition, it supplies the engines used in Ram pickup trucks, such as the 2500 and 3500 that you see on the roads of Brazil. But times are changing and something that generations of Cummins employees have not seen has now become a reality.

The manufacturer has developed gas and even hydrogen variants over the years, but after 106 years, it presents its first gasoline engine, recently launched.

Initially designed for tractors, it will be exclusive to Kenworth brand trucks, being called B6.7 Octane.

It has been in development since 2023 and is derived from a 6.7-liter inline six-cylinder diesel engine, the same one used in the Ram pickup trucks mentioned above.

According to Cummins, this is a solution that combines the durability of diesel engines with the simplicity of gasoline technology.

Less demanding in terms of emission control, the B6.7 Octane has a maximum declared power of 305 horsepower, with a maximum torque of 91.3 kgfm.

In the United States, diesel engines still dominate the traffic segment, but their operating costs have been increasing significantly, as has environmental pressure in some American states.

Some regions have had to ban diesel vehicles due to stricter emission standards, such as California and New Mexico, for example.

Part of Cummins' HELM project, which seeks to offer customers several fuel options on a single platform, the B6.7 Octane can be configured to run on diesel, gasoline, LPG, CNG or hydrogen.

According to the company, maintenance will be similar to that of a conventional gasoline engine and fuel economy should be around 10% higher compared to other engines of the same size, using 87 octane gasoline.

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