UOA after 3K miles? Are you planning on running GC for 3K? I'm sorry, but you're waisting your money. Under those intervals I would run a cheapo brand name dino purchased on sale. You'll get similar results to the posted UOA. Also, what do you need LC, FP for??? How do you calcualate your milage? Did you run the car under similar conditions? There are lots of variable that can significantly alter your gas mileage such as cold temperature start-ups, colder temps in general (that also affect tire air pressure), "winter" gas etc.