No, Auto-RX is a longer term treatment. Its completely safe, and a much more environmentally safe product, though that seams like a counter productive point to make since you'll be pouring it and draining it with your motor oil, LOL.

Basically you change your oil, using a regular non-synthetic motor oil and a new filter. Pour a bottle of Auto-RX in and then the motor oil. Drive it for 3,000 miles, then drain out the oil, change the filter and put in another round of non-synthetic motor oil. Drive that for 3000 miles then drain it all out again, change the filter and then you can run/use whatever oil you want from there.

My Isuzu Rodeo I bought, Ive got it in the engine, transmission and differential. I just recently got a couple more bottles to use in the wifes Cherokee and in the power steering of the Rodeo. Im just about done with the clean cycle and will drain it out and run the rinse cycle oil.

It is by far much more effective if you can get the vehicle on the highway and drive it for a while so that everything gets up to temperature for 10 - 15 minutes or so if not longer. I drive 36 miles one way to work so this is really easy for me to do. The longer and more often you can get things up to temperature, the better.

Auto-RX does not smoke like Seafoam. So you wont be scaring your neighbors.