Fuel System Cleaner Recommendations??
04-12-2013, 06:24 PM
#11
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2 A8s in the shop today for cleaning plus 1 A3 2.0
all 3 cars look the same in the intake valves.[/QUOTE]
s4master1, wouid you, please, snap a pictures of these intake valves?
Will benefit many of lucky owners! ;-)
TIA
all 3 cars look the same in the intake valves.[/QUOTE]
s4master1, wouid you, please, snap a pictures of these intake valves?
Will benefit many of lucky owners! ;-)
TIA
04-12-2013, 07:07 PM
#12
AudiWorld Super User
04-12-2013, 07:11 PM
#13
04-13-2013, 03:26 AM
#15
AudiWorld Super User
Notice from the OP post it is a 2007. Thus it's FSI. Therefore, your suggestion about an fuel system type cleaner (like a Techron) is of very limited utility except basically for the injectors themselves, since the fuel of course doesn't go thru the port to wash the intake valves, but instead directly into the cylinder.
I've used the VAG product in our 2006 Avant, direct injection, and did find some minimal improvement. That car is approaching 90k miles and is likely to be a victim of the valve crud build up. Most realize that mechanical cleaning of the back of the valves remains the only real solution, but I did find faster (cold) start-up and a slightly improved idle quality. So, with the price of admission being so low, the VAG product may provide some minimal improvement.
VAG also sells one other fuel additive that is supposed to prevent the carbon build up in the first place. I'm afraid that additive has to be used in every take of gasoline to work its magic.
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