So, first the old post below in brown followed by the new post in green
(contamination of the results talk after green):
New 8/12/2012 off the lot with 40 total miles (driven over from dealers other lot).
8/15/2012 341 total miles so 300 miles fillup at 12.4 gallons = 24.2 mpg
8/20/2012 648 total miles so 307 miles fillup at 14.4 gallons = 21.3 mpg
8/23/3012 920 total miles so 272 miles fillup at 12,4 galons = 21.9 mpg
8/27/2012 1273 total miles so 353 miles fillup at 16.0 gallons = 22.0 mpg
9/1/2012 1472 total miles so 199 miles fillup at 9.0 gallons = 22.1 mpg
Average = 300 + 307 + 272 + 353 + 199 = 22.4 mpg over first 1472 with OEM air/oil filter/oil
12.4 + 14.4 + 12.4 + 16 + 9
Will post again after next 1500, see if any diff in investment:
K&N air filter $40
K&N oil filter $6
Valvoline Synpower $30 for 5 quarts
9/9/12 1868 total miles so 396 miles fillup at 16.9 gallons = 23.4 mpg
9/14/12 2135 total miles so 267 miles fillup at 11.8 gallons = 22.6 mpg
9/22/12 2506 total miles so 371 miles fillup at 15.7 gallons = 23.7 mpg
9/27/12 2700 total miles so 194 miles fillup at 7.9 gallons = 24.6 mpg
10/9/12 3036 total miles so 336 miles fillup at 13.8 gallons = 24.3 mpg
Average = 396 + 267 + 371 + 194 + 336 = 23.7 mpg over next 1564 with K&N oil/air filters & Valvoline Synpower 5w20.
16.9 + 11.8 + 15.7 + 7.9 + 13.8
Looks great, that I got an increase in gas mileage;
a couple probs with the comparison, though.
My schedule changed to odd hours having less traffic.
Always have bout 10 miles of 35 mph zone lights going/coming out,
but that can be jammed or completely free, depending on time of day.
For the 2nd 1500 miles, I got to pretty much avoid clogs,
so cannot generalize until I get back same prior schedule.
Only can say city driving tanks mpg; Journey Hwy mpg is good.
