Fuel Saving Tips
Excessive low-load, low-RPM driving in turbocharged performance vehicles causes excessive carbon buildup in the cylinder and on the spark plug that can cause misfires and knock if left unchecked. It may seem counterintuative, but you need to burn off these carbon deposits occasionally by driving spiritedly for a little bit (note:obey all local speed laws).
posted by MD1032 on December 12, 2014
this tip works for 90% of voting Fuelly members.