Original Source: MSN

For decades, when someone mentioned a Cummins 6.7, you didn’t just assume it was a diesel, you knew it was. Cummins is synonymous with torquey workhorses that sipped fuel from the big green-handled pumps at the truck stop. But times are changing. The B6.7 Octane, Cummins’ first-ever gasoline-powered turbocharged 6.7-liter inline-six is coming. Yes, you read that right. A Cummins that runs on 87-octane instead of diesel.

Diesel-Like Performance Without Dealing With Diesel 

Designed for medium-duty trucks—think buses, delivery vans, and workhorse fleet vehicles—the B6.7 Octane is all about delivering diesel-style longevity and torque without diesel-related headaches. It comes in four different power configurations, ranging from 200 horsepower and 600 lb-ft of torque to a max of 300 horsepower and 660 lb-ft.

Lighter, Cleaner, and Built for the Future 

The B6.7 Octane is part of Cummins’ HELM series, a new lineup of “fuel-agnostic” engines designed to share architecture across different fuel types, from gasoline to hydrogen. This means that while today’s Octane burns gasoline, tomorrow’s version could be a hydrogen burner. This is an interesting answer to our endless wondering about what future cars might look like.

The engine itself is a clean-sheet design with a new block, dual overhead cams, and a rear gear train. It’s also lighter than the current diesel version, which means less weight and better efficiency for the trucks carried by it.

And speaking of efficiency—there’s another big advantage here. No more diesel exhaust fluid (DEF). No particulate filters. No complicated emissions equipment. Just a 15,000-mile oil change interval and a whole lot of torque.

When Is The Cummins B6.7 Available?

If you were already planning to swap one of these into your bus conversion and hit the road, you’ll have to wait a little bit. The B6.7 Octane enters production next year, and initially, it’ll be exclusive to Cummins’ OEM chassis partners, like Kenworth.

But here’s the thing—if this torque monster delivers on its promises, it won’t be long before gear heads and truck enthusiasts start eyeing it for swaps. After all, 300 horsepower and 660 lb-ft of torque is already impressive. And if history tells us anything, it’s that the Cummins crowd will throw power mods on it.

Could this be the beginning of a gasoline-powered revolution in medium-duty trucks? It sure looks like it.