My 2007 Buick LaCroose w/ the 3.8 v6 is using some oil. 37,xxx miles . I am using Castrol GTX 5-30 w/ Wix filters.
I recently made a few 500-600 mile hiway trips . I change oil @ 3000-3500 miles and need to add 1 to 1 1/2 qts. in between the changes. No leaks or smoke on start up. Dealer said not a common issue w/ them.
Any body have this issue??