I did a search on this forum and read some positive comments about Walmart's SuperTech oil. I went out and bought the 5 qt container of full synthetic, high mileage 5W-20 and a single qt of the same thing. I went super cheap and also bought the low end Fram filter. I stayed away from the Supertech oil filters. I bought one a while back and took it apart and noticed a small gap in between the combination drain back/relief valve where I felt it didn't seal properly. I think the Fram filter has better stats anyway, so I went with the paper end caps, low end Fram filter. The bottom of the Supertech oil containers don't have any identifying marks like WPP, so I don't know who bottled the oil for Walmart. I'm a little nervous about using Supertech oil, but it sure was cheap. I normally spend over $35, but this time it was less than $25, and I could have spent less than $20 if I didn't buy the extra single quart. You can't beat the price for full synthetic.