To maintain its luxury performance, BMW recommends always using premium gas.
Does BMW Require Premium Gas?
Every BMW model should be filled with premium gas in order to maintain its engine and keep up with its high-performance reputation.
Premium gas helps to maintain the turbochargers while promoting more stable ignition timing.
Differences Between Premium And Regular Gas
Premium gas is a higher-octane fuel with the octane level of 91-plus. Regular gas, meanwhile, has the lowest octane level at 87.
Premium gas features a higher resistance to engine knocking and is also designed for models with high-compression engines or turbochargers. This fuel type can withstand more pressure before spontaneous combustion. Vehicles like BMWs that require premium gas typically feature improved fuel efficiency.
Regular unleaded fuel usually burns quicker than premium fuel. This makes it the better choice for vehicles that feature lower-compression engines.
Can A BMW Use Regular Gas?
Depending on your specific model, it could have either a turbocharger or a high-compression engine that needs the necessary fuel for its intended performance. Higher octane fuel can benefit performance models because the fuel is more stabilized against spontaneous combustion.
When high-performance models use less stable fuel, such as regular gas, it can create some engine knocking. This happens when fuel is burned unevenly throughout the engine cylinders. Air and fuel pockets will go off at the wrong time. This causes a pinging or knocking sound from under the hood. Essentially, the gas is ultimately lighting prematurely.
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