Just in case you guys ever need any questions answered just ask me and I will pass it along to the Guru at work and he will tell you. I will pass on some tid bits of oil information he has given me, after all he learned all of this from being a construction worker in the Air Force for 20 years. 1. Quaker State and Penzoil are garbage, they are made with beeswax and will ruin your engine. 2. Going over 3k between oil changes will harm your engine. 3. He recommened using ONLY Mobil1 and says he has it changed every 2k. Also says proper engine break in you should change your oil @ 100miles, then 500miles, then 1000miles, then stick to 2-3k oil changes with ONLY Mobile1. 4. While his suburb knowledge did enlighten me that Fram filters were garbage, he could not name a brand that I should use. 5. He said that he will ONLY get a new car when his Nissan Extera hits 250k and his wifes Acura reaches 300k. But yet he also tells me that he never has or never intends to flush and fill the radiator, brake fluid or transmission fluid. 6. For a smoother ride and a longer lasting tire always lower the tire pressue 5 lbs regardless of make or specified tire pressure.