Should the old Buick Regal use 92 or 95 octane gasoline?
1 Answers
Buick Regal 1.5T models use 92 octane gasoline, while 2.0T models use 95 octane gasoline. Gasoline octane ratings: Represent the octane value of the fuel. The higher the rating, the higher the octane value, indicating better anti-knock performance. Stronger anti-knock properties make the engine run more smoothly, reduce wear, and provide better engine protection. However, higher fuel octane ratings are not always better. Function: Only when the gasoline's octane value matches the engine's compression ratio requirements can it fully utilize power performance and fuel economy. If a low-compression engine uses high-octane fuel, incomplete combustion may occur.