what kind of gas?
 

im a newbie when it comes to X5 coz im into jdm cars! but im confused should i put 93 octane but the salesman told me i can put middle class fuel which is 89 octane?pls help? by the way our x5 is 2002 3.0i thanks! :thumbup:

The minimum the X5 is designed to run on is 91 octane.

Hi, here's a link containing pages of opins, on a similar question...
Give a read and come to your own conclusions.
BR,md

http://www.xoutpost.com/showthread.ph...light=Kind+gas

I noticed a significant difference when I tried 89 octane and I wouldn't use anything other than 91 in my 4.6is. It seemed to hesitate under load and gas mileage dropped - my 2c....