Just wondering what oil you run and how often you change it.

 

Rotella Synthetic 5w-40
Every 8000-9000 miles

 

Rotella 15-40....Every 5k

 

Delo 400 15w-40. 5k miles. Last two Blackstone OA's said go to 6k. I'm stayin' at 5k.

 

Rotella... same as others... good stuff imho

 

Rotella 15-40....Every 5k, may go to Rotella Synthetic 5w-40 next time but my OA has been go so far so I may not change a thing.

 

Rotella 5w-40 in the winter, Delo 15w-40 in the summer, 10,000 mile OCI.

 

Syn Rotella

 

Schaeffer's 9000 5W-40 synth. I'm staying around 6k mile intervals and sending this next change in for an oil analysis.

 

Shell Rotella 15-40 every 5k

 

Yup, that's my routine.

 

Usually Schaeffers 9000 but Rotella 15W40 for the moment.

 

17-18,000 miles on Dino Delo 400. Two Blackstones and three bypass filters along the way.

Pop.

 

Schaeffer's 9000

 

Rotella Synthetic 5w-40 mainly because it's easy to get at wally world. Blackstone tested at 6,000 said it would be fine to 7,500. That oil was 90% highway though so will still be changing it at around 6,000 just because. Figure about $100 per change. I also highly recommend one of these Fumoto drain valves: Replacement O-rings for Diesel Engines

Make changing oil or taking a sample a breeze!