Is Shell HX7 Plus a Fully Synthetic Engine Oil?

[BentleyMarie]

Shell HX7 Plus is a fully synthetic engine oil. Below are the methods for selecting engine oil and precautions for adding engine oil: Methods for selecting engine oil: Naturally aspirated engines have relatively general requirements for oil quality and can use mineral oil or semi-synthetic oil. If the owner has a higher budget, fully synthetic oil can be used. Compared to naturally aspirated engines, turbocharged engines have a more compact structure and operate in harsher conditions, requiring higher-performance oil with better fluidity. Fully synthetic oil is recommended. Precautions for adding engine oil: Engine oil with a grade of 5W-40 semi-synthetic can be used. When changing the oil, the oil filter should also be replaced. The oil level should generally be maintained between the minimum and maximum marks on the dipstick. Try not to let it fall below the middle mark, as a low oil level will reduce lubrication effectiveness. It is acceptable to have the level slightly above the middle, but never exceed the upper limit on the dipstick. Doing so will create unnecessary resistance to the crankshaft's rotation, affecting power output and increasing fuel consumption.