Although of standard, legal width when traveling down the highway, the trailer’s sides slide out and expand to a width of 22-feet in order to accommodate the displays. The trend toward extended oil change intervals is showcased in one exhibit.
Another exhibit shows parts from a million-mile plus Caterpillar engine. A third shows engine parts from a Detroit Diesel DD15 engine run for 400,000 miles with 70,000-mile change intervals. All the parts are in perfect condition and show minimal wear.