We will also provide a detailed engine oil weight chart in a tabular format for easy reference. To read oil weight, first identify the oil’s grade on the american petroleum institute (api) scale The lower the number, the heavier the oil For example, grade 30 oil is much heavier than grade 10 oil. Formulas and examples of calculation of average molecular weight of hydrocarbon mixtures from gravity and average boiling point, achieved from distillation data. The american petroleum institute gravity, or api gravity, is a measure of how heavy or light a petroleum liquid is compared to water
If its api gravity is greater than 10, it is lighter and floats on water If less than 10, it is heavier and sinks. Engine oil density chart explained with a detailed table format Learn key numbers for better vehicle performance and oil selection. To assist in those efforts, the society of automotive engineers (sae) together with leading engine manufacturers created a motor oil classification system based on oil weight or viscosity. The best way to determine the correct oil for your car is to consult the owner’s manual
