Originally Posted By: Clevy
Originally Posted By: NMBurb02
Originally Posted By: Durango
At my local ARCO gas station I too have seen the advertising signs regarding it'c cleaning agents and cleaner valves. I'm taking a wild guess that this might be due to their possible sale of ARCO to the same company that manufacturers SHELL. I can't remember that parent company but if my guess is right then ARCO could be considered just as good as SHELL gas.
The fact that they will be owned by the same company that makes Shell gasoline (Tesoro), doesn't mean much. Tesoro also sells USA Gasoline branded gas, which is [censored], if I am to believe what others have reported. The
big differences between brands of gasoline is the additives, as there are only a handful of refiners, who supply the "blank" fuel stock for other oil companies to add to and then sell.
It is my understanding that the additives are added to the tankers and the trip to deliver is what mixes it all up. I have a friend who delivers fuel tankers. He says they deliver in unmarked tankers so they can use the same tank to deliver to different stations. I've known him to be very honest so I take his word for it.
However, that still means that the difference in the fuel is the result of adding stuff after the refinery is done with it. Some places may share fuel and allow them to be branded differently (I have heard of Costco tanks being filled by tankers marked with name brand fuels), but I doubt Chevron (Techron), Shell ("Nitrogen enriched!"), and other Top Tier fuel brands allow their fuels to be supplied to non-branded stations due to the expenses they incur to keep the Top Tier designation. I know that many manufacturers private label their products in order to sell them at lower price points and do not spend the same (or any) advertising dollars and thereby penetrate different levels of the market while taking advantage of the economies of scale and using up excess capacity, but I doubt those principles holds true for fuel additives.