Issue 60's theme:  we are celebrating 15 years of the Turbo Diesel Register.  What can you expect in Issue 60?  This anniversary issue sparked the creative efforts of Greg Whale as he composed a quiz for the TDR audience.  How much TDR/Dodge/Cummins trivia do you know?  Find out by taking Greg's "Are You A Diesel Dufus?" quiz on page 116, or take it online by clicking here:  Are you a Diesel Dufus?  Hey, there are prizes involved, so get busy and take the quiz.

Greg's quiz required back issue research, and I was also forced to go back to an old magazine in an effort to understand the plight of the aftermarket performance vendors in the new world of NOx and particulate emission control for the 6.7-liter engine.  Blending old information with new, you'll find my report on page 50.

- Joe Donnelly does a follow-up on compound turbochargers.

- Holmes, Dalgleish, and Leno evaluate new products.

- Whale, St. Laurent, Mikonis and Patton review the new 2009 Dodge Ram.

- Whale, Freund, Patton and Cameron give you something to think about in their discussions on diesels, fuel mileage, diesel prices and government mandates.

Enjoy!