For those BWM owners, is premium gas required or just recommended? Does it significantly impact performance/mileage by using a lesser grade?
2007-03-13 11:39:27 · 4 answers · asked by tigerdave2 2 in Cars & Transportation ➔ Car Makes ➔ BMW
Premium Gas is required. Using a lower octaned gas will cause your cars performance to go down, requiring you to use more gas to maintain acceleration and driving speeds, therefore putting your mileage down. Also using a lower grade gas in your BMW can slowly start to destroy your engine, causing the car to idle at a higher RPM, which will ruin that nice smooth BMW driving experience.
2007-03-13 12:37:58 · answer #1 · answered by Anonymous · 0⤊ 2⤋
I have a 330i and have also heard that you can run at lower octane but you won't get the performance. I can also tell the diff. I'll change it up between mid-grade and premium. My car has never knocked.
I had heard that 330's will adjust based on octane.
Question is-- what year, model, engine to you have?
2007-03-13 13:28:04 · answer #2 · answered by dapixelator 6 · 1⤊ 1⤋
Required...The engine is desinged to run off of premium octane.. combustable difference with lower octane will cause problems
2007-03-13 12:13:22 · answer #3 · answered by gearhead HD 2 · 0⤊ 1⤋
Required, if you don't put the highest octane, the engine will knock.
2007-03-13 11:44:57 · answer #4 · answered by Anonymous · 0⤊ 2⤋