3.0 Liter carbon buildup?
02-08-2016, 09:58 AM
#11
AudiWorld Member
Moisture build-up is one thing. But I thought we were talking about carbon build-up here specifically.
In any case, I think I'd rather pay for an occasional carbon cleaning instead of waste 20 minutes and additional gasoline and rack up extra miles on the car every day.
In any case, I think I'd rather pay for an occasional carbon cleaning instead of waste 20 minutes and additional gasoline and rack up extra miles on the car every day.
02-08-2016, 10:16 AM
#12
AudiWorld Expert
But yeah, giving the engine a good workout would help build up internal temps and hopefully help burn off some of the deposits. Just have to try not to get any tickets in the process.
02-08-2016, 10:52 AM
#13
AudiWorld Senior Member
Moisture build-up is one thing. But I thought we were talking about carbon build-up here specifically.
In any case, I think I'd rather pay for an occasional carbon cleaning instead of wasting 20 minutes and additional gasoline and racking up extra miles on the car every day.
In any case, I think I'd rather pay for an occasional carbon cleaning instead of wasting 20 minutes and additional gasoline and racking up extra miles on the car every day.
Last edited by plat27265; 02-08-2016 at 10:55 AM.
02-09-2016, 03:58 AM
#14
AudiWorld Super User
02-09-2016, 06:28 AM
#17
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I ran my 2011 B8 S4 (3.0T) to 94k miles with no issues. Ran as strong at the end as it did when new.
3.0T really hasn't exhibited any significant issues with carbon build up.
Thermostats, yes.
Early fuel pumps, yes.
But carbon build up? Notsomuch.
3.0T really hasn't exhibited any significant issues with carbon build up.
Thermostats, yes.
Early fuel pumps, yes.
But carbon build up? Notsomuch.
02-09-2016, 06:32 AM
#18
AudiWorld Member
I've been mostly joking about this, but serious question: How does the intake tract and valve stems carbon up if they are getting no heat or exposure to burned/partially burned fuel? Seems counter intuitive.
02-09-2016, 06:54 AM
#19
AudiWorld Senior Member
The 'Italian tune-up' may even make things worse by causing more blow-by gases from hard driving, as well as sucking them into the intake with the vacuum created when you close the throttle at high rpm.
Last edited by newmoon; 02-09-2016 at 06:59 AM.
02-09-2016, 06:56 AM
#20
AudiWorld Super User
There are oil fumes (PCV) and exhaust gas recirculation that deposits on very hot valves and valve stems. That is my limited knowledge. One reason that some enthusiasts install catch-cans on the PCV hose connection.