I have an 06 Cummings...Owners manual states 6 months / 7500 miles
I rarely drive 9000 a year, I use Rotella T & MMO
Should I change every 6 months?
or
Should I wait till I get 7500 miles?
or
Just change according to oil analysis?
I rarely drive 9000 a year, I use Rotella T & MMO
Should I change every 6 months?
or
Should I wait till I get 7500 miles?
or
Just change according to oil analysis?