Globe & Mail : Am I missing out by buying off-brand gas?
May 23, 2012
Am I losing something by buying from an off-brand or independent gas station, versus a Shell or Petro-Canada? – Rick, Milford Bay, Ont.
The gasoline sold at independents comes from the same refineries as the gas from the big-name chains – the only difference is that each brand puts in their own recipe of engine-cleaning additives.
Read the complete article – http://www.theglobeandmail.com/globe-drive/car-tips/maintenance-and-repairs/am-i-missing-out-by-buying-off-brand-gas/article2437402/