Here's what i learned. Go to advance auto parts web page. Add some items to your shopping cart, then wait. Check back in the following day, chances are they will offer you 20% with a code, apply code, maybe add an item, and wait. check back in the following day and chances are they will give you a discount for 25% off your cart, if not wait another day, but it only took me 2 days. and that is when i dropped all the transmission fluid and filter kit, etc. and bought some por 15 for the next project