I'm pretty sure he has the Pentastar V6. My biggest concern would be the roller rockers and VVT system oiling. I'd also be surprised if he hasn't already replaced some or most of the rockers. Thinking thicker oil wouldn't be too good for the needle bearings? I dunno....


'68 Fury Convertible
'69 300 Convertible
'15 Durango 5.7 Hemi
'16 300 S Hemi