truck won't start and dealership said the oil is sludge i change oil every 4500 miles faithfully
All depends on the oil brand you use, also the breathing system for the crank case may have needed attention for a while. They claim oil can go as far as 8000 miles, but best results is to change oil every 3000 miles.
For city driving it's usually best to change the oil every 3000 miles.
Looking for a Used Ram 1500 in your area?
CarGurus has 11,065 nationwide Ram 1500 listings starting at $2,000.
Search Dodge Ram 1500 Questions
Dodge Ram 1500 Experts
Related Models For Sale
Used Cars For Sale