Can Different Engine Oils Be Mixed?

1 Answers
DeCali
07/24/25 4:52pm
Engine oils should not be mixed. Here is relevant information about engine oil: 1. Mixing different brands of engine oil should be avoided: Because different models contain varying additives, they may react with each other and cause various issues. The additives used by different brands differ, and chemical reactions can occur, leading to the oil becoming thicker or thinner, partially losing its lubricating function. 2. Engine oil is the lubricant for engine operation: It lubricates, cleans, cools, seals, and reduces friction in the engine. It also neutralizes acids produced by fuel and lubricant oxidation, improves the sealing of piston rings, and is crucial for reducing wear on engine components and extending their service life.
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