HowStuffWorks "Summer-grade versus Winter-grade Fuel"
9 reasons why your winter fuel economy bites! - MetroMPG.com
This is the time of year petroleum company's change over May1-June1 from winter to summer fuel blends
In a nutshell you can't go as far with winter gas,has the service station swapped over to summer fuel?
Last edited by 40th370z; 06-05-2013 at 08:50 AM.
Reason: Addition
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