hillwood24

The gas often comes from the same place, but each individual gas station adds their own detergents. This is usually done by the driver of the tanker.

Georgiaboy5.0L

I hope bubba puts the right stuff in at the right place...........do u think he has his own chemistry set on his truck to.........................all jokes aside in my 50 plus years and working in a service station as a young man work thru college and working weekends at a service station for extra money in years past, I've never ever seen the drive do anything but just open the tank and put in his hose in and fill it up.

hillwood24

I'm not 100% sure about that, but I worked at a gas station in college and one of the fuel delivery men told me that. That was a while ago though. Maybe now certain stations have a special mixing thing already underground

p38fln

The tanker drivers mix it at the rack when they fill the tanker - it's the gas station chain that determines the mix, not the individual gas station. If an independent BP station buys gas, it gets the same gas and additive mixture that the corporate BP station gets.

Georgiaboy5.0L

That's amazing to me...that company's as large as BP, Exxon, Shell and so on...would leave it up to someone else to mix the additive package to their gasoline......I may out in left field on this issue but that should happen long before it arrives to the store....because i'm sure that some stores don't do the same thing ever time....looks like to me that it leaves alot to chance.