I am thinking about using this product, but was curious as to how often i would need to use and and how many ounces would i need per fillup? My vehicle is a 03 Nissan Altima 2.5 with roughly 43K on the clock. Also, is there a coupon code, or special sale happening anytime soon? It's gonna cost about 42.oo shipped to my door
Thanks in advance for the help
Forget to mention my car has about a 20 gallon capacity.