Originally Posted by GTyankee
only the Ram 1500 has MDS & use the 5w20
the 2500 & 3500s don't have the MDS & those engines use 10w30
both are the exact same short block
The oil filler cap on my truck says to use 5w20. My truck is a 2500.
Of course I'm way much more smrter than an oil filler cap so I use 5w30