I couldn't find any details about the new fluid except a few of the articles make mention of a new synthetic fluid in the new 8l90 GM transmission:
http://www.offroadxtreme.com/news/detail...-silverado-1500
I wonder if there will be a new Dexron spec?
http://www.offroadxtreme.com/news/detail...-silverado-1500
I wonder if there will be a new Dexron spec?