Chevy and GMC Duramax Diesel Forum banner
  • Hey Everyone! Enter your ride HERE to be a part of this months Ride of the Month Challenge!
1 - 6 of 6 Posts

·
Registered
Joined
·
3 Posts
Discussion Starter · #1 ·
jimok

Got a "03 silverado 3/4 w/ duromax. At 140,000 miles, is there a downside to changing from Rotella 15-40 to Syntheic?
 

·
Registered
Joined
·
3 Posts
Discussion Starter · #3 ·
I'd like to get another 140,000 out of her. Just want to preform any preventitive maintenance that may help with that.
 

·
Oh...... Squirrel!
Joined
·
24,083 Posts

·
Registered
Joined
·
484 Posts
Switching to synthetic now causes the motor to be desludged and causes oodles of oil restriction problems.
 
1 - 6 of 6 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top