Originally Posted by tiger862
Originally Posted by ChrisD46
Thanks - I am currently using Valvoline Advance Synthetic in newer vehicles , so the fact that Valvoline is making the NAPA conventional 5W30 should be good for a older Trailblazer 4.2L I have in the stable .
Conventional doesn't meet Dexos.
May not need it depending how old the Trailblazer is.