Quote:
Originally Posted by Pushing_Tin
My car has the sooty exhaust tips and I drive it hard. It now has 5600 miles and uses virtually no oil. My car was built Nov 2008.
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Not from oil. The soot is from Fueling (running rich). If you run it hard you leave the O2 controlled Closed loop control behind, and enter open loop that uses pre-built fuel maps. These typically are a bit rich as most Dynos here have shown..