Now before I get started let me just state I use this product every other tank no matter what. This experiment is just to see if it is cost worthy doing EVERY tank. Right now I am still gathering data. I am using three different log sheets for this. It is currently hand written so I will not bare you the telescopes needed to read my hand writing.

DATA LOG Sheet 1:
When Lucas Complete Fuel Treatment was added

9/16/2011 - 151206
9/23/2011 - 151664
10/2/2011 - 152110
10/7/2011 - 152427
10/16/2011 - 152806

DATA LOG Sheet 2: DC=Driving Condition(City or Hwy)
Tank Fill Ups - Date-Mileage-Total-Gallons-Cost-DC %-MPG-Gas $/gal

9/11/2011 - 150807-151009 - 202 - 11.54 - 36 - 10/90 - 17.5 - 3.12
9/16/2011 - 151009-151206 - 197 - 13.73 - 44.50 - 80/20 - 14.3 - 3.23
9/17/2011 - 151206-151414 - 208 - 13.24 - 42 - 30/70 - 15.7 - 3.17
9/23/2011 - 151414-151664 - 250 - 16.64 - 53.25 - 60/40 - 15 - 3.19
9/26/2011 - 151644-151856 - 212 - 11.94 - 37.50 - 50/50 - 17.7 - 3.13
10/2/2011 - 151856-152110 - 254 - 15.97 - 50 - 50/50 - 15.9 - 3.12
10/6/2011 - 152110-152383 - 273 - 15.95 - 45 - 50/50 - 17.1 - 2.82
10/7/2011 - 152383-152427 - 44 - 3.29 - 10.50 - 100/0 - 13.4 - 3.18
10/11/2011 - 152427-152660 - 233 - 13.48 - 41 - 60/40 - 17.28 - 3.04
10/16/2011 - 152660-152806 - 146 - 11.01 - 36 - 80/20 - 15.26 - 3.26

DATA LOG Sheet 3:
Daily Drive Log - Date - Total - Starts - Miles DC(City & Hwy)
10/2/2011 - 157.4 - 6 - 25.7/131.2
10/3/2011 - 36 - 4 - 22.60/12.60
10/4/2011 - 27 - 3 - 26.80/0
10/5/2011 - 26 - 2 - 26.1/0
10/6/2011 - 46 - 3 - 45.9/0
10/7/2011 - 95 - 6 - 25.5/69.7
10/8/2011 - 26 - 2 - 26.1/0
10/9/2011 - 65 - 3 - 65/0
10/10/2011 - 37 - 3 - 11.4/26.4
10/11/2011 - 44 - 3 - 26.4/18.9
10/12/2011 - 41 - 5 - 41.5/0
10/13/2011 - 31 - 2 - 31/0
10/14/2011 - 33 - 5 - 33.3/0
10/15/2011 - 26 - 2 - 26.4/0
10/16/2011 - 144 - 8 - 4.6/143.6

I will scan and post the sheets as I complete them. This was some numbers to give you math crunchers something to do. I am too busy right now to crunch the numbers to cost per mile. That is what really need to break it down to. Gas+Treatment/Mileage=Cost per mile. Plus its late and I must be getting to bed. LOL

Brain kinda slow, but this is the formula I am looking at using:

Total Mileage/(Gas+Fuel Treatment) = Cost Per Mile.

Soon I will be getting a new fuel pump so I can stretch the tanks farther, but I enjoy seeing under $50 fill ups even though I know its only 2/3s I burn a tank.