What is the difference between insufficient engine oil and insufficient fuel?

[SavannahMarie]

The difference lies in the warning indicators. There is no specific "insufficient engine oil" warning light, only a "low oil pressure" indicator, which is a red light shaped like a small oil can. Insufficient fuel is indicated by the fuel gauge needle reaching the red line, and in most cases, a yellow warning light will illuminate. Below are the relevant details: 1. Engine Oil: Engine oil primarily serves to lubricate mechanical components, reducing wear and extending the vehicle's service life. It is categorized into synthetic and semi-synthetic oils, which have similar performance and functions but differ significantly in service life. Generally, semi-synthetic oil needs to be replaced every 3,000-5,000 kilometers, while full synthetic oil can last up to 10,000 kilometers. 2. Fuel: Fuel is a mixture of various oils and residues. After refining and purification in a refinery, it is separated by distillation equipment at varying temperatures from low to high, producing the following products in order: overhead gas, gasoline, kerosene, diesel, and residual oil.