Originally Posted by caspershadow
I have a 03 Ram with the 4.7. I have heard people say these engines are bad to sludge up. Is this true? If so what can be done to help prevent this? Perhaps using 5w30 full syntheic motor oil? That is my only idea.
Yup go with 100% synthetic like Amsoil if your worried about sludge. FYI had the 4.7 in my 08 dak with no sign of sludge however did have 100% syth in it from the first 1000kms.