Well, I have moved and had to find a new oil change place. The place I found has Chevron Supreme 10w-30 that I previously used. But they charge the same price to change my oil with Chevron as Pennzoil or Castrol. So, should I keep with Chevron or should I use Pennzoil or Castrol, which are supposed to be "better" oil. I know they cost more, probably more marketing. But if you had the change to use a "high Price" oil like Pennzoil or Castrol GTX over Chevron for the same price, would you?