i've got 4 qts of 5w20 conventional in my 2008 caliber, 18600 mi, for 1 year.
i drove all year a total of 1500 miles, all highway. oil still nice and clean looking and i'm going to wait until August to change.
i drove all year a total of 1500 miles, all highway. oil still nice and clean looking and i'm going to wait until August to change.