what's next?

[Studebaker]

I've been working down my stash and because of the economy I am going to be staying just one oil change ahead.
I am currently using Rotella 5w-40 in the Jeep Wrangler (2003 w/140,000 miles, 4.0 I6) and it has held up well. (Motorcraft FL1A filter)
The 2005 Highlander is a newer purchase, and I have been running synthetic in it since 32,000 miles (any good filter, 4 cylinder, now approaching 55,000). I have been changing both at 5,000 mile intervals. I am beginning to think maybe the synthetic is overkill, but want to keep 5,000 mile changes. I wonder if 1 qt syn and 3 qts dino for the Totota would be okay for 5,000 miles?

 

[coffee]

Of course it would be fine as dino can do 5k by itself. You might want to try Motorcraft syn blend or even a high mileage oil. Either way almost any oil will do 5k and synthetic is overkill for that OCI.

 

[Bill in Utah]

5k OCI anything will be good to go.

You don't see really cold weather so a 5w30 SM oil would do you just fine!

As far as the Jeep I LOVE those 4.0l I6 motors. They really seem to love a good 10w30 oil most of the time.

The Rotella is a excellent oil also. I'd prob stay with what brought ya with it.

Take care, Bill