Choose Ultimate Diesel Builderâ??s Guide to read about all event coverage, from small regional events up to the largest of national events. Feature articles show everything from dedicated race and competition diesel rigs to daily drivers and unique diesel swaps. And advanced technical articles cover in-depth subjects in ways that even new diesel enthusiasts can understand and learn from. Our readers range from youngsters looking to purchase their first diesel truck to seasoned veterans wanting to stay up to date on the latest happenings in the diesel world.