Diesel truck fans may have heard the legends surrounding the 12-valve Cummins. Found in trucks like Dodge Rams from 1989 to 1998, its fully mechanical fuel system and rugged injectors are celebrated ...

The 12V Cummins diesel engine and its 24V version share numerous traits, including displacement. But their differences make the engines quite distinct.

As newer and flashier trucks became available, many people forgot about the older '89 to '93 Dodges. There's no doubt that this early 5.9L Cummins is a workhorse, but can it make power? The answer is, ...

In the swirling, churning fireball at the heart of every internal combustion engine, complexity reigns supreme. Valves and pistons lunge up and down at thousands of feet per second, pressure spikes to ...

In the last year or so, third-gen Dodges ('03-'07) have really come on strong. We're starting to see more and more of them produce big power numbers, and also run speedily down the dragstrip. At the ...

For the first time in company history, Cummins has officially endorsed diesel fuel additives, recommending two Power Service products, Diesel Kleen + Cetane Boost and Diesel Fuel Supplement + Cetane ...