What kind of engine oil should be used for Buick Regal maintenance?

1 Answers
SanGraham
07/30/25 6:50am
Regarding the engine oil for Buick Regal, fully synthetic oil is the best choice. Brands such as Shell, Castrol, and Mobil are recommended. More relevant information is as follows: 1. Oil quantity: Too much or too little oil will have adverse effects on engine operation. Excessive oil can easily increase engine load and affect power output. Over time, the engine's exhaust ventilation system may also be damaged, leading to increased carbon deposits. Excessive oil can also create the illusion of oil burning. Insufficient oil usually affects the overall lubrication effect of the engine, especially for components lubricated by crankshaft splash, which may experience increased wear or even damage. 2. Engine: Naturally aspirated engines have lower requirements for oil and can use mineral oil or semi-synthetic oil. If the consumer's budget allows, fully synthetic oil can be used. Compared to naturally aspirated engines, turbocharged engines have more precise internal components and operate in harsher conditions, requiring higher performance oil with better fluidity. Fully synthetic oil is the best choice for turbocharged engines.
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