... or anyone else.

I drive Mum aboutst town in her sleek German engineered Chrysler 300, averaging 4km per day at 40 to 50 kph. Last Sunday AM I took it out on the 4lane and put the pedal to metal 3 times - about 80 to 160 kph but I couldn't maintain 160 for any more than about 30 seconds even though there wasn't much traffic. Each time I killed a hundred skeeters with blue smoke but I know it's still carboned up.

So, how do I blow the carbon out if I can't maintain speed for 10 km or so? If I rev it in park will that fuck things up?