Is Shell Helix Yellow Fully Synthetic Oil?

[LaVivian]

Shell Helix Yellow is not entirely synthetic oil. Shell's Helix HX5 and HX5-Plus oils use yellow packaging, hence they are commonly referred to as Shell Helix Yellow. Among Shell Helix Yellow oils, HX5 is a mineral oil with only one viscosity grade, 5W30. HX5-Plus, on the other hand, is a semi-synthetic oil and an upgraded version of HX5, offering better overall performance. It comes in two viscosity grades: 10W40 and 5W30. Helix HX5 is a mineral oil suitable for small-displacement, fuel-efficient vehicles. Helix HX5-Plus is a semi-synthetic oil with a broader application range than HX5. It focuses on cleaning protection, quiet operation, and smooth performance. This oil utilizes synthetic technology to provide better engine protection and is suitable for economical private cars and naturally aspirated models. Using fully synthetic oil can provide the best lubrication and protection for the engine. However, when choosing engine oil, it's essential to consider actual needs. Sometimes, semi-synthetic oil is sufficient to meet all the engine's requirements, and blindly opting for fully synthetic oil can be wasteful.