GM Truck Club
THE PREMIER CHEVY TRUCK & SUV FORUM
Founded in 2004 ~ We're the #1 Chevy Truck & SUV Forum.
Silverado & Sierra | Tahoe & Yukon | Suburban & Yukon XL | SUV & CROSSOVER
Results 1 to 7 of 7

Threaded View

  1. #1

    Default Dealer Supplied Synthetic Blend Oil

    I recently had my 07 Sierra serviced at the dealer where I bought it. I was told the dealers are now using only synthetic blend of oil for oil changes. The service tech could not tell me what the blend was other than being 5w-30 Dexos. Two (2) email later to the dealer and all I got back was a song and dance about the service they provide, etc. but no answer on what the blend of oil. I contacted the GMC Customer Assistnace Center and was unable to get an answer. I was told they would have to research it. All I want to know is what is the blend (%) of synthetic oil to regular oil. Can you help?
    Last edited by Goldie; 02-04-2013 at 05:51 PM. Reason: mispelling

Similar Threads

  1. How to access blend door??!!??!!
    By vncj96 in forum General Chevy & GM Tech Questions
    Replies: 4
    Last Post: 06-07-2011, 02:56 PM
  2. Blend Door
    By Blazerado in forum General Chevy & GM Tech Questions
    Replies: 0
    Last Post: 01-24-2011, 07:11 AM
  3. Synthetic Blend.... Opinions Please!
    By GatorFan6908 in forum Maintenance & Upkeep
    Replies: 7
    Last Post: 11-05-2010, 10:04 AM
  4. A/C Blend door noise
    By scooby2b2 in forum General Chevy & GM Tech Questions
    Replies: 3
    Last Post: 10-28-2008, 06:55 AM
  5. Blend door hanging!!
    By swoop in forum Chevy Suburban Forum (GMC Yukon XL)
    Replies: 1
    Last Post: 04-03-2007, 07:03 AM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •