Buy named top tier fuel. It is available at many places and has the best additive packages. See the link in the post below.
Should have been "name brand" in the top post.
87 octane regular unleaded.
I didn't know about this gas quality list. very helpful. thanks
Looking for a Used LeSabre in your area?
CarGurus has 1,878 nationwide LeSabre listings starting at $1,588.
Search Buick LeSabre Questions
Buick LeSabre Experts