Thanks. I'm going to take if for drive down to Indy tomorrow that's about an hour and a half each way. Although with fresh oil it probably doesn't have any dilution issues right now.I tried really hard to find the link on the F150 Forum regarding the 10k mark with fuel dilution. Honestly I found a lot of information about 6% being the norm for these motors. The DFI pressure is typically mentioned as the cause. I'll keep looking and post it as soon as I find it!