Thanks to all for clearly calling me out about buying my vehicles at Wal Mart. For clarification what I was trying to say was that i had bought both brands of the motor oil at Wal Mart and not the vehicles.
While still here the vehicles I have are a 2008 Elantra with 75k and 2004 Sienna with 102k miles respectively. Neither uses oil between changes. As a reule of thumb mileage on the Elantra is a roughly 30 mile rt commute to/from work with some time sitting in stop and go conditions currently in Austin,Texas where summer time temps will reach 100 F or higher
The Sienna is used primarily for errands of 20 miles or less one way with most totaling 10 to 15 miles and mostly at surface street speeds of 40mph or slower.
All this to ask if there is any reason I should consider changing to a high mileage oil or even a synthetic for either or both vehicles? I do change oil and filters at 3000k intervals due to having more of a start/stop pattern than strictly unimpeded highway conditions.
I need to change both currently so any quick input is appreciated