Decades ago, gas was different at some stations because the cheapo owners had tanks that leaked. Dirt and water = bad gas. The EPA put a stop to that.
The amount of Techron in Chevron gas is MINUSCULE. Buy a bottle of Techron before each oil change as follows: Put the Techron in a half tank. Run it down as low as you can. Fill the tank to full and run it down again. Refill the tank and do your oil change.
Shell markets their gas as having
nitrogen. Oooh. Aaah.
News flash: the air your car burns in 78% nitrogen.
Gasoline brand marketing is just that: marketing.
__________________
--------------------------------------
Joe
See Porsche run. Run, Porsche, Run:
`87 911 Carrera