All STP oil filters are on sale at AutoZone. 2 for $5. No coupon, no rebate. These are normally $9.99 each. Limit 2.

7.3's need the S3786.

Most AZ's only carry 1 or 2 of these, and one jerk-wad manager would not sell me 1 for $2.50. They did get on the computer and found a store nearby that had 8 in stock. Took the wife with me and bought 4.

On the way to that AZ, passed another AZ (they have one about every few blocks around here) that had 2 in stock, so I bought those too.

Drove about 15 miles, less than 1 hour, bought 6. I'd go back for more, but the AZ is near the Mall.


STP filters are made by Champion Labs and are consider to be of good quality.

BTW. AZ also has 10w-40 "Valuline" oil for $0.79/qt., but it is only SF-rated. OK for your older cars, but not good for anything newer than about mid-80s. NOT good for PSDs.