Mine pinged when it was stock under hard throttle. Stg 1 and PCIII tuning cured most of it. If I labor the motor in hot weather (pulling hills in 6th say below 70mph) it will ping a little. The temps were in the 100s when I noticed this. My oil temps were ~230 in these conditions.
mine was just like this untill i paid for the dyno tune. now i have thundermax and dont have to worry about changeing conditions as it will auto tune.