KBacon,

The 03 dually I shot about a week ago had greenish timing marks. My 02 Patriot single cam also had greenish marks. If it has white marks it sounds like the previous owner put them there but in the wrong spot. The factory timing marks wear off rather easily, so this could be the case. I actually use red stick-on car pinstriping bought at walmart to mark my timing marks, works great. Hope this helps.

MN_BOWHUNTER