| tuning as well. He asked about quality. All gasoline will have a similar quality when leaving a terminal. The quality will be mostly influenced by water or other contaminants in the storage tank at the station. Shell's 91 is not closer to 93. It's 91. They are not selling a more expensive gasoline (more oxygenated) at a lower price. Every state, as well as many county and municipal governments regularly test the octane levels in the storage tanks at stations to verify consumers are not paying for higher octane gasoline than advertised. In the U.S. the measurement standards are the same across the board, so I'm not sure why you state "Usually Shell has the best quality." Do you have some documentation to share? Shell buys gasoline from BP, Exxon, CITGO, and various other suppliers to supply their stations all across the country. They have their own supply chain for some stations, but buy on the spot market for other stations. They add their proprietary detergents at all of their supply terminals, whether it's their own terminal or a third party terminal. The octane levels are standardized and inspected. Either way, I didn't read his question to be about octane, so I answered it as I read it.
Dustin
 "I've contributed alot of good tech help to this site that
no one here could have figured out" - JuniorTT 02/15/06 |
