I've been using Sam's Club gas here in NH. Excellent so far!
Originally Posted by phlfly
Try to use better gas, NOT from Costco. Better brands like Exxon, Shell has less ethanol in the gas. Any time I fueled mine with Costco gas I would get a check engine light that is meaning super small vapor leak, well I test a lot times and I guess it's too much ethanol there.
27-30 mpg on 2006 530xi.
Mid 400's per tank.
My garage: 2013 BMW 550xi GT, 2007 BMW Z4 3.0si Manual, 2006 BMW 530xi
Retired: 2007 BMW X3, 1998 BMW Z3
Member of BMWCCA!
Last edited by madurodave; 10-09-2012 at 03:40 AM.