Subject: Do I need the expensive gas??? Author: dugies25 : member since March, 2005 : 3 posts Posted on: 2005-03-28 11:22:22

I am pretty new to this "Ultimate Diving Machine" experience. I want to treat my car right, but I also don't want to throw money out the window when I don't need to. My previous cars have never required premium gasoline, but they have never been BMW's either. I read in the manul to use 91 octane or above to avoid knocking in the engine. But I have also heard reports that unless you are driving a super high performance vehicle that your car won't know the difference between 87, 89, or 93 octance gasoline. I have a 2003 330 CI, It is the most high performance vehicle i have ever owned, but i don't know if it qualifies as needing the higher octane gas...and with the gas prices today, if it doesn't need it, I could save $5-$10 a week by getting the lower gas. What does everyone think? Has anyone had experience with knocking in their engine from lower octane gas?

• Do I need the expensive gas??? - dugies25 2005-03-28 11:22:22 (1316 views)
  • YES!!! Run the high-test - tagmart 2005-05-16 15:12:09 (1375 views)
  • Re: Do I need the expensive gas??? - beemeup 2005-05-15 22:25:22 (988 views)
  • Gas and oil are like religions but, yes, IMHO, I would recommend - DavidC 2005-03-28 12:22:59 (1092 views)