daves4

What kind and how often we people use fuel injector clean here?

GrandPaJohn

I use Techron, about once or twice a year.

GDJT Allroad^2

Chevron Techron, every six months.... (at least in the A8; haven't had the S4 that long yet)

Schnell!

^^^ I use Techron in the last tank of gas before an oil change. ^^^

O.W. Kenobi

I threw in a bottle of Techron at 30k. I'm closing in on 50k, and I'll probably do another one then

SilverA4Fun

ditto, every 5k just before oil change since degrades the oil properties a bit. Seafoam also works.

Pat

I put in what the TSB tells me to put in. It's an Audi/VW injector cleaner from the dealer.

Schnell!

Despite changing the oil, putting some Techron in the tank, and several days of driving, the blasted CEL isn't going away. I wonder if the carbon dislodged by the Seafoam fouled my plugs.

I'm going to have the codes pulled in the next few days.

PSmalls::DoggieStyle

I use Techron before every other oil change (every 6,000 or 7,000 miles)

LI-S4

Ditto..every oil change...