Heavier oil for high mileage engine? - Chevrolet Forum - Chevy Enthusiasts Forums

Notices
Impala While undergoing many facelifts in its history, the Impala has proved itself to both civilians and police forces as one of the most capable 4-door cars GM has ever offered. Currently moving towards its 10th generation the Impala is one of the longest lasting and popular models.

2014 Chevrolet Impala
Includes: Bel-air
Platform: B-body & W-body

Heavier oil for high mileage engine?

Old January 13th, 2019, 1:24 PM
  #1  
CF Junior Member
Thread Starter
 
Join Date: Apr 2009
Posts: 38
Default Heavier oil for high mileage engine?

2003 Impala 3.4L 286K garaged in GA
Should I switch from the recommended 5w-30 to 10w-30 or 10w-40? I was thinking the the engine has certainly worn a bit and the clearances have increased. Don't know the oil pressure yet.
Thanks.
crawdad is offline  
Old January 13th, 2019, 1:43 PM
  #2  
CF Monarch
 
kevinkpk's Avatar
 
Join Date: Jul 2011
Posts: 4,428
Default

Personally, I'd go with the same viscosity, high mileage oil.
kevinkpk is offline  
Old January 13th, 2019, 4:28 PM
  #3  
CF Junior Member
Thread Starter
 
Join Date: Apr 2009
Posts: 38
Default

That's probably a better idea. Thanks
crawdad is offline  

Thread Tools
Search this Thread
Sponsors

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: