 That's why Shell Rotella, with advanced synthetic technology, is designed to help keep your rig running and save you money in the long run. That means less time in the shop and more time on the road. It also means you'll get more chances to see North America's finest roadside attractions. Cows, cornfields, cows in cornfields. It's lovely this time of year. Superior engine protection for longer engine life. Shell Rotella, for the long haul.