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By delivering superior protection for ultimate engine performance, car engines are fully protected from extreme temperatures to urban city stresses. Shell Helix Ultra stays stronger for longer to provide superior protection against wear, up to 32% better resistance to oil degradation and up to 50% less evaporation to deliver on fuel and engine efficiency. With its active cleansing technology, it also protects from harmful sludge and deposits that can seriously affect the car’s engine power and performance.