- Feb 28, 2004
- Edmonton, Alberta, Canada
I would like some feedback on the new Petro-Canada Duron E 10W-40 grp 3 synthetic in comparison to the 5W-40. I have been using the 5W-40 in my 03 7.3 PSD with very good UAO's. Here is the link to the data sheets PC Duron data I know there isn't much data there but what do you guys think between the two? Thanks.