has anyone used the full synthetic line from quaker. i just saw the commercial with the sti and was wondering if its any good. gonna make my first oil change and was wondering what synthetic brand is good to use.

 

If your STI is not shipping with synthetic oil, the general consensus it to NOT use synthetic until your motor is fully broken in... 10k miles or so should do it.

The dealerships seem to use regular quaker state 10w-30... I'd check your owners manual and see what is recommends.