Originally posted by Dallas4u
This is funny... a person in the service department telling someone that just had their engine replaced that, if they use AMSoil, they would usually only need to change their oil once a year? Hilarious and completely and utterly wrong! Would ANYONE seriously go 15k miles on one single oil change?

I know because of new enigne warranty reasons that you have to change it every 3k miles, which is definitely encouraged, but can you imagine someone actually believing this guy... changing their oil once in a year, then bringing it back with a problem?

"Eh, the service manager said if I use AMSoil I only need to change my oil once a year. Yeah, I went around 20k this year and changed it in June... so why do I hear scraping in the engine compartment all the time??? What? You say it's my fault? Well, your service manager SAID I didn't have to change it but once a year... so why do I have to pay ANOTHER $5k for ANOTHER engine?"
http://www.amsoil.com/products/tso.html

SERVICE LIFE

In personal cars and light-duty trucks with non-turbocharged gasoline engines: change the oil at 35,000-mile or one-year intervals, whichever comes first

I've got 12k miles on mine in 6 months, no sign of color change, or burn off. Oil Analysis was done on a sample and it is still well within the limits. it's not 1950 anymore.

8 bucks a quart.