We are about 80 miles east of Houston. Victoria is south of Houston, I think about 80 miles.Try shopping the discount auto parts stores when they have sales. They often have deals like 5 quarts of synthetic oil plus a filter for around $25. They seem to rotate which synthetic oil is on sale at the moment. I wait until they are selling a brand I like then buy whatever the deal is. Usually end up getting the filter for free and paying about $25 for 5 qts of full synthetic oil.
Where you from in Texas? Anywhere near Victoria?
Costco will also run the deal on penzoil. I'm not that picky on what the mowers get. If mobil 1 is a great price I will buy it, but I will buy something else that is cheaper. The Tundra however strictly gets Amsoil synthetic.As previously mentioned...I've bought it at Walmart for anywhere from $24-$6 for 5 quart jug.
Then last summer I saw the Costco coupon deal and bought 3 cases...forgot the exact cost per quart but it was a better deal than Walmart.