Which day of the week is Shell Discount Day?
1 Answers
Generally, Wednesday is Shell's Super Member Day every week, but it may vary in some regions. For example, in Texas, the Super Member Days are Tuesday and Friday. If car owners visit a Shell gas station on Wednesday and it's not a member day, they can inquire with the station staff about which day of the week is designated as the member day. Additional notes on engine oil: Higher viscosity does not necessarily mean better engine protection. High-viscosity oil not only adversely affects overall fuel consumption but also fails to protect the engine effectively. Another function of engine oil is cooling and heat dissipation. When high-viscosity oil is used indiscriminately, the engine's oil cooling performance is inevitably compromised. Engine oils should not be mixed: The additive components in oils from different manufacturers vary entirely. The chemical compositions of these additives differ not only between brands but also within the same brand's different product lines. Mixing oils from two brands can lead to chemical reactions under the engine's high temperatures, such as the formation of flocculent substances in the oil or increased viscosity.