I haven't seen much if any analysis of these "high mileage" oils.. My mom's Corolla, 110K miles is burning oil regularly.. My parents don't check the oil very often,
so I'm thinking if she used one of these it would help with the burning and driving with the oil low. Which oil would you guys choose, Castrol, QuakerState, Valvoline, etc? I'm leaning towards Castrol as their regular GTX line seems to produce pretty good analysis numbers for a dino oil.