Okay, with my previous 2 tacoma's I would pay to have my oil changed so that I could have the papertrail of proof w/ oil changes. Basically, I wanted to cover myself in case I ever needed warranty work on the engine. I drove the crap out of those tacoma's, drove them very hard. Never had any problems. One of the taco's I kept long enough for the warranty to run out, then I started changing my own oil after that with Amsoil. I really enjoyed changing my own oil. My new truck, a 2007 tacoma has 1,300 miles. I am debating whether to follow the same routine as past or just start doing my own oil changes off the bat. So how does one document their do-it-yourself oil changes, do you keep receipts? Does the dealership require proof in case of warranty claims? Or do you guys just change the oil and not worry about warranty claims in the future? I still have gallons of amsoil, 10w30 and 5w30 and I stil have amsoil oil filters, that look smaller but according to the website the 3.4 oil filters fit the new 4.0 engines.