Fellow Audifiles--- I was on the Blau site yesterday, and under the heading tech stuff, It said that if your car hard starts (which mine does) then it needs new injectors. I also notice slight fluctuations when accellerating hard from 50-70mph+ . I use chevron fuel with techron. Also have run red line fuel injector cleaner recently. TIA Dan Hamren 1987 5000 cs q wagon 145,000 miles