Jonner
NAXJA Forum User
- Location
- Charlotte, NC
So I've had the 4.0L rebuilt in my '98 at one of the best engine rebuilders in Ohio, and I had a conversation with him about break in procedures and engine weights.
I followed his directions and am through the 20 minute break-in and 500 mile break-in. Now I'm getting into the normal oil change cycle of every 3000 miles. Since I don't have a garage, I'm calling around to local garages to schedule an oil change appointment.
I just got off the phone with one shop, and they acted a little strange when I said I needed 10w40 and a Mopar filter for my summertime oil change. Now, we are coming into fall, so I could probably use 10w30 anyway, but my question is does it sound out of the ordinary to spec 10w40 oil in a 4.0L rebuilt engine for the summertime? And 10w30 for the winter?
I know the FSM calls for 10w30 summer and 5w30 winter (but I forget the temperature thresholds off the top of my head).
I followed his directions and am through the 20 minute break-in and 500 mile break-in. Now I'm getting into the normal oil change cycle of every 3000 miles. Since I don't have a garage, I'm calling around to local garages to schedule an oil change appointment.
I just got off the phone with one shop, and they acted a little strange when I said I needed 10w40 and a Mopar filter for my summertime oil change. Now, we are coming into fall, so I could probably use 10w30 anyway, but my question is does it sound out of the ordinary to spec 10w40 oil in a 4.0L rebuilt engine for the summertime? And 10w30 for the winter?
I know the FSM calls for 10w30 summer and 5w30 winter (but I forget the temperature thresholds off the top of my head).