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Old 02-23-2013, 04:23 AM
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dcharnet dcharnet is offline
Officially Welcomed to the 'Fest
Location: Iowa
 
Join Date: Feb 2008
Posts: 352
Mein Auto: BMW '12 X5 35i
"Suffice" is very subjective. The X5 will run fine on 87 or above but at 87 will be down a little on power, and, some say, MPG. In normal driving it is hard for me to feel or see any difference. These are not race cars, after all. The difference between 93 and 91 is immaterial. The most important thing is to buy "top tier" fuel with decent additives.
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