Well good thing I don’t have to be “The Decider”… I don’t need that kind of pressure. Good thing someone else is willing to take the bullet for me. The guys over at Capital Reman, have given it their best shot to rank the Top 10 Best and Worst diesel engines of all time. What do ya’ll think? Did they hit the nail on the head or completely miss the target on this one? Honorable Mention: The Cummins B-Series This article is about what they came up with. Why We Like It: This engine wasn’t the first Cummins Engine to bring some respectability to the medium duty diesel engine market but it surly refined it. The 4BT, 6BT and ISB 5.9L engines absolutely killed it in the torque rating capability. You need to tow something these engines have got you covered. Honorable mention on the best diesel engine of all time list isn’t too shabby. Engine Type: Four Stroke, Six Cylinder, Inline.Fuel Injection: Electronic high-pressure common rail.

Why We Like It: What’s not to like about this engine?! If you’ve ever driven on a public highway you’ve probably passed 47 trucks running a DT-466 engine. Baby, this engine hauls America’s freight on a daily basis and is the backbone of the medium-duty fleets all over the country.

It is a favorite of fleet managers because they run forever, have great torque to power ratio and can actually be rebuilt right in the frame of the truck. Number 5 seems fitting for the best diesel engine for the sheer number of units currently still on the road.

Type and Description: Four Stroke, Six Cylinder, Inline.

Total Engine Weight (dry): 1,425 lb (647 kg).

Worst International Engine: VT-265, VT-265, VT-335, VT-365 Series (Became PowerStroke 6.0L) Why We Hate It: The VT-265 and VT-335 in particular were part of the International Light Duty models released in 2003. Ford adopted the Powerstroke officially in 2003 but was unofficially in production starting in 1994. The predecessors were bigger 6 cylinders however an International bean counter decided it would be a grand idea to chop off 2 of the cylinders producing a 4 cylinder engine. This didn’t go over too well and the VT-265 and VT-335 were horribly under-powered.

Why We Like It: Ruff! Ruff! Ruff! Grrrr… That’s a good boy! What’s not to love about the Mack Bulldog. Mack truck engines have been around since 1893 when the Mack Brothers bought Fallsen & Berry Wagon Company in Brooklyn, New York. Mack has always been known as a slow and steady workhorse. It produced its first hook and ladder fire engine in 1909, produced over 6,000 trucks for the US and British Military during WWI and helped build the Hoover Dam in 1933. Its engines are known for their crankshaft to wheel torque ratio. These are the engines that built America. The Mack E-7 was first produced in 1988 and lasted until the early 21st century. They are extremely simple to overhaul and rebuild and do exactly what you need for them. They won’t win any races but are extremely reliable engines.

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