PowerJrod
Ram Guru
Pretty much...Wouldn't that assume they did nothing else with the engine? sounds like they have been running 5W-20 since 2007, the engine has been refined over the years, makes sense it would run optimally on their recommended oil weight?
The 6.4L recommends 0W-40 but also comes with MDS.
Makes me wonder why 0w-40 or even 0w-30 isn't recommended for the 5.7 Hemi, especially since the engine has been updated and refined. But I agree....I see older Hemis on the road from about the 2007-2010 era running just fine... I'm sure they've been using the same 5w30 from the beginning.