Yes, Techron is a very good product. I use it once or twice a year, in order to prevent problems.
Should you use Top Tier gas?
What does the Owner’s Manual for your car have to say on this topic?
Some mfrs (GM, Toyota, BMW, VW) specifically recommend Top Tier gas because of its higher detergent formulation. Even if your car’s mfr does not specify it, certainly it couldn’t hurt to use Top Tier gas–as long as it doesn’t cost too much more than other gas in your area.
I used to use Shell gas exclusively, simply because the Shell station was cheaper than others in the area, as well as selling Top Tier gas. When that station began charging a lot more per gallon for the use of a credit card, I switched to Hess, simply because it is much cheaper–and I have not experienced any problems with Hess.
But…maybe my occasional use of Techron is preventing problems. Quien sabe?
When I am near a Costco gas station, I fill up there, because they are usually about 12 cents per gallon cheaper than anyone else in the area. And, although Costco is not “certified” as a Top Tier gas brand, they do use 5 times the federally-mandated level of detergents in their gas. My guess is that Costco doesn’t want to pay for the testing necessary for it to gain Top Tier certification, even if they are probably meeting those standards.