You need to know your oil will protect your engine under all conditions. No matter how hot, cold, steep, dusty, muddy or extended your operations, you demand protection. The Energized Protection of Shell Rotella heavy duty diesel engine oils provides protection in three critical areas: 1. Acid Control - helps protect against corrosion from acids formed as fuel burns and as the oil ages 2. Deposit Control - helps keep engine clean for optimum performance and long life 3. Wear Control - helps keep moving metal engine surfaces apart for long life | 
