posted by GM Corvette Spokesmen

The LT2 engine in the Corvette is a very capable and powerful powerplant; the jewel within the all-new mid-engine design.
Producing 495 horsepower at 6450 rpm and 470 lb-ft. of torque at 5150 rpm with performance exhaust, this engine produces more naturally aspirated HP per liter of displacement than any Corvette engine in history.

To fully enable this extreme level of engine performance, the LT2 was designed to be driven.

Like many performance car engines, the LT2 is sensitive to short run-time starts where the spark plug does not have time to heat up.

In these cases, carbon from the combustion process can accumulate on the spark plug and result in rough idle or misfire.

The best way to keep your spark plugs clean is to safely exercise your Corvette on your favorite roads or track.

Both running your engine and spirited driving can clean plugs that may be partially impacted.

Whenever possible, try to run your engine until it has reached a coolant temperature greater than 125 degrees Fahrenheit,
and/or at least 3 minutes of engine run time, instead of frequent, short duration low RPM start/stop cycles.