I was pretty impressed by the results. This is my last oil change with supertech though, I switched to the costco oil which I think most of the community knows is made by warren so I'm pretty much using the same oil. I made the switch because the costco oil is a better deal at regular price.Between costco's price and buying OEM filters in bulk my oil changes are down to $13.58. Can't get any better than that given the results. I'd love to find a sale on the costco oil. I just might buy out the whole shelf. I'm wondering if my 4.88 gears are putting less load on the engine. Factory gear was 3.91, with 30" tires. I went to 33s and my math showed me I needed 4.30 gears but decided for 4.88s for offroading purposes given my truck is a manual and I wanted to be off the clutch more.