Corolla's fuel injectors

Get some Toyota brand fuel injector cleaner from your local Toyota dealer or Chevron Techron from your local parts store and follow the directions on the bottle. Basically, you add it to a half tank of gas and use it up within a week.

My mechanic recommends a gasoline additive called Techron, added once or twice a year. He doesn't sell it, so I figure he's being honest with this opinion. Auto supply places carry it. I haven't noticed a difference after using it, but I also did not notice a problem BEFORE using it. Draw whatever conclusion are convenient, based on my shoddy research.

We have already learned to do that.

You left yourself wide open there, Joe!

YUP - Chevron Techron available at Target and Advance Auto. Add it to tank of gas. Works great on my Yotas.