For over 40 years, Shell Rotella® heavy duty engine oils have delivered unrivaled protection and performance. From wear, deposits and emissions protection of Shell Rotella® T Triple Protection®, or the improved fuel economy of Shell Rotella® T5 Synthetic Blend Technology, to the excellent high/low temperature protection of Shell Rotella® T6 Full Synthetic, there is a Shell Rotella® motor oil engineered to handle your needs.