honestly I would go with the recommended 5w20 oil and interval changes.Typically synthetic oils have the 5k intervals while it is recommended to change 3k-4k. I think 10-12k is pushing it with any oil. I typically change my oil around 5k on my previous car with mobil 1 synthetic. Do your oil changes yourself or at a dealer..I've had some poor experiences at lube shops. Although I am a tsx newbie, Ive done my fair share of experimentation on other vehicles. Hope this helps.