Fuel-Agnostic Engines: Let's Talk About the Future of Diesel

A quick note on the name, since “hybrid” gets attached to this and it’s the wrong word: a fuel-agnostic engine is not a hybrid. A hybrid pairs a combustion engine with an electric motor and a battery. A fuel-agnostic engine is one engine family built so that different fuel-specific versions share a common base — no electric drive involved. Different idea entirely.

With that out of the way: Cummins says it has a fuel-agnostic internal combustion engine platform that can be built to run on several different fuels. Electric vehicles are trending right now, but there may be a future where drivers use more sustainable fuels like hydrogen or e-fuels. Cummins knows that there will be changes to fuel sources for combustion engines, and so they recently announced plans to switch to hydrogen long term.

Hydrogen of course burns differently than other fuels, so there are challenges to running hydrogen, but the American engine manufacturer thinks that these challenges can be overcome. Often incentives have to align in order for change to happen. In this case, Cummins developing a flexible fuel agnostic engine will allow them to save development time and production, which ultimately saves them money and then those costs are passed onto the consumer.

These engines will feature the same base below the head gasket. What differs of course is the fuel that’s used and what’s above the head gasket. B, L, and X-Series engine portfolios will likely come in diesel, natural gas, and hydrogen configurations.

Modern Diesel will continue to watch these developments so we can better serve our customers. We’re as excited as you are about better tech.