Well Norm Amsoil requires that before you change from your basic oil to Synthetic you flush the motor. Amsoil has a motor flush that you pour into the engine, than you let the car run at idle for approx. 15 min., after you just drain the oil out, change the filter and add the Synthetic.
Oh by the way, you might want to buy 2 oil filters, maybe a cheap one, as well as the regular filter you plan on using, and before doing the flush change the old filter with the cheap one, the flush will remove alot of crap in the engine, and you're gonna want a new filter to catch all that crap, than when done dump that filter and oil, put in the new one with the new oil. If you get the racing 0w30 like the one I use, than it'll run you anywhere from 7$-10$depending where you buy it from. I get mines for about $7.50 a quart because I'm a regular customer.
Any more ?'s just ask me.........
