Carbon Build Up 35d swirl flaps intake manifold M57 with pics

[Price]

Originally Posted by sgrice

I'll be honest and say that my car doesn't seem to be running any differently now - so maybe all my efforts were for naught. But I doubt it - I think that eventually my swirl flaps would have become stuck, with subsequent check engine lights (CELs) and various codes. I keep telling myself that I saved myself from an inopportune future mechanical issue, but who really knows?

Have you noticed any change in mileage?

Anyway, great write up!

[split71]

To the OP does your car burn oil? If so, at what rate?

[sgrice]

To Price: Honestly, I haven't noticed any change in mileage after the CBU cleaning. As mentioned on the thermostat thread, I did get a nice improvement in mpg after installing a new thermostat. But nothing that I noticed after the CBU buildup.

To Split71: I would say not really. I have been able to go the roughly 11,000 miles or so between oil changes without having to add any. Though by the time 11,000 miles or so is up I seem to be down about a quart.

Regards.