E46Fanatics - View Single Post - Premium Gas or Unleaded for -04 330ci-

jasonbimmer · 04-09-2012, 09:50 AM

actually what kind of gas you use significantly depending on your driving style. if you just cruising around at low rpm all day, probably regular/plus will serve you just as well as premium. if you like to hit the red lines and hear the engine sing like I do, premium is the only choice.
when engine is working harder, fuel is more easily to ignite we all know that. you surely dont want the fuel to pre-ignite causing a knock.
its like engine oil. why M3's with higher red line uses thicker oil to compensate the heat?

04-09-2012, 09:50 AM	#55
jasonbimmer Registered User Join Date: Sep 2011 Location: Omaha, NE Posts: 5,612 My Ride: 2001 BMW 330xi View My Garage	actually what kind of gas you use significantly depending on your driving style. if you just cruising around at low rpm all day, probably regular/plus will serve you just as well as premium. if you like to hit the red lines and hear the engine sing like I do, premium is the only choice. when engine is working harder, fuel is more easily to ignite we all know that. you surely dont want the fuel to pre-ignite causing a knock. its like engine oil. why M3's with higher red line uses thicker oil to compensate the heat? __________________ 2009 Mazda RX-8 R3 2013 Toyota FJ Cruiser 2008 YAMAHA YZF-R6 Last edited by jasonbimmer; 04-09-2012 at 09:53 AM.