The Center for Quality Assurance (yes, I know it sounds fake, and even the website looks like a front, but they do seem like a real company) is most famous for their ATF+4 licensing program for Chrysler transmission fluid, but now they also administer the licensing program for Top Tier.
Top Tier has also been expanded to include diesel. Top Tier Diesel has only existed since last year, while Top Tier Gas started in 2004.
I learned about CQA running the Top Tier program in another thread on BITOG about how they no longer manage the GM dexos licensing scheme.
Top Tier has also been expanded to include diesel. Top Tier Diesel has only existed since last year, while Top Tier Gas started in 2004.
I learned about CQA running the Top Tier program in another thread on BITOG about how they no longer manage the GM dexos licensing scheme.