I like Chevron... I always thought that Techron additive was bull, then my old car, an 84 BMW started bogging badly, acting like it was going to die on me, and did a few times... I ran injector cleaner thru there, still did it... Someone on another forum I used to goto (was a BMW forum) said to try a full tank of Chevron with Techron... It worked... They said to run it thru every few weeks, I did, and it never happened again while I had the car... :thumbup: