The following information has been provided by Shell's official website, which you can visit by clicking here.
Engine Oils: Shell Rotella® T6 Full Synthetic Heavy Duty Engine Oil
Shell Rotella® T6 Full Synthetic Heavy Duty Engine Oil features an advanced multi-functional, low-ash additive technology in a synthetic base oil designed to provide highly responsive protection that continuously adapts to your driving conditions.
UNSURPASSED SHEAR STABILITY
Use of selected low-viscosity synthetic base oils further energizes the oil's protective capability that promotes fuel-economy performance with no compromise in durability:
Energy saving - fuel-economy performance*
Excellent engine cleanliness and wear protection
Excellent extreme high/low-temperature protection
Improved low-temperature flow*