As I understand it, it's not so much which refinery the gas comes from that determines the "quality", but the additives used and the condition of the station's holding tanks. Quality is marginally affected by the amount of water and other contaminants in the gas, which is in turn affected by the filtration. Each pump has filters which need to be changed regularly, and often are not, and the tank as a whole I believe has a filter as well. I don't think this follows brand lines so much as it does owners of particular stations.
http://ask.metafilter.com/mefi/23613Selecting the best gasoline for your needs
http://advanceautoparts.com/english/youcan/html/ccr/ccr20030201fs.htmlQuality of gasoline declines as prices billow
http://www.findarticles.com/p/articles/mi_m3306/is_5_115/ai_n14867128 Before You Buy Gasoline or Petrol
http://chemistry.about.com/library/weekly/aabyb100401.htmThe price and quality of gasoline
http://www.cockeyed.com/citizen/gasoline_prices/gasoline_info.htmlBrand Autopsy
http://brandautopsy.typepad.com/brandautopsy/2004/07/the_gas_we_pass.htmlMisc info
http://www.partsource.ca/doityourself/TIPS_fuel-efficiency-emission.asp
2 comments:
What's up with your contact info coming up on phishing spam/junk mail ?
you ought to be a little more careful .
Where? When? What? I would like to fix this, but I dont know what you are referring to.
My apologies...
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