Just wanting to bump this up, I'm having the same smoking issue, not forged and I'm pretty sure unopened 4efte on 180k kms, had it before and it turned out my turbo was gone, got it rebuilt and made into a hybrid but I'm still getting the smoke after boosting up coasting and touching the throttle. Never smokes on boost or on idle, can it be fuel related? Never have to top up oil or coolant but then again it only gets driven at weekends