Originally Posted By: 2civics
Originally Posted By: spk2000
Is there a cost to becoming "certified top tier"? Maybe they just didn't think it worth the cost if so.
Good point. Maybe they have to run their own tests and research to present to Top Tier. I definitely think that people are becoming more and more aware of TT (AAA marketing, ECT.) So it would make sense to jump on board now.
It's all here:
http://www.toptiergas.com/faqs/
The tests are usually done by the additive maker, which will have the test data ready for the customer to present, along with the concentration of additive used. Some gas retailers might change additives (like winter vs summer additives) or even different additive suppliers. They should be able to provide all the results.
Once they have that there's a licensing fee. Apparently it's not based on the amount of fuel sold, but the number of gas stations representing the brand. As far as I can tell, if TT is licensed to the brand, no gas station under that brand can opt out. I do wonder about something like one-off stations, like the few "Standard" stations that Chevron still has. I guess that's technically still Chevron.
Another thing about Top Tier is that the additives for all grades of gasoline must pass the tests and not just premium like some brands would do.