Hey enes, all 12 valve engines and '98 and some '99 24 valve engines are subject to KDP issues. The KDP itself won't cause an oil leak unless it has already let go. You might just have a seal leaking, in which case it would be a good time to do the KDP fix if your truck fits those years.
BTW. Fill in your signature at the bottom so we know what you have.
Boyd.
BTW. Fill in your signature at the bottom so we know what you have.

Boyd.