Longest thread, what's your mpg this tank?
 

I'd like to see how gas milage changes for different trucks as the seasons change. Do you think this thread can last a year?

01 Screw 5.4 4x4

13.9 mpg reformulated gas

Originally, before any mods, I was getting in the 15.8-16.4 MPG range. Post mods, I have been 19.0 - 19.2 range for 6 fillups now. 95% highway miles with cruise control on.

15mpg, city driving:bandito:

ill see if this works, its an excel doc, so??
but were is a 2 and 1\3 year fillups
it goes from date, to what i paid, to how many gallons, to how many miles, to adv miles per gallon, to price per gallon, to octane

4/24/2001 42.21 23.065 292 12.65987427 1.83 89
4/27/2001 42.04 21.46 284 13.23392358 1.959 89
5/1/2001 41.58 22.128 284 12.83441793 1.879 89
5/8/2001 46.15 21.988 277.3 12.61142441 2.099 93
5/12/2001 37.82 18.918 258.2 13.64837721 1.999 89 air filter
5/16/2001 32.24 16.713 226.6 13.5583079 1.929 89
5/18/2001 42.69 21.354 346.5 16.22646811 1.999 89
5/25/2001 42.7 21.47 258 12.01676758 1.989 89
5/31/2001 32.21 16.357 207.8 12.70404108 1.969 89
6/6/2001 43.66 21.842 281.6 12.89259225 1.999 92
6/11/2001 42.71 22.029 298 13.52762268 1.939 93
6/14/2001 41.57 21.438 296.6 13.83524583 1.939 93
6/18/2001 26.93 14.182 180.5 12.72740093 1.899 93
6/25/2001 36.46 21.462 273.2 12.72947535 1.699 93
6/28/2001 37.52 22.347 281.6 12.60124401 1.679 93
7/2/2001 28.01 17.627 229.8 13.03681852 1.589 93
7/4/2001 20.09 12.97 188.6 14.54124904 1.549 93
7/9/2001 32.11 21.42 280.6 13.09990663 1.499 93
7/13/2001 33.36 21.539 257.1 11.9364873 1.549 93 oil, trans, fuel filter, tires rotated
7/17/2001 31.34 21.632 250 11.55695266 1.449 93
7/19/2001 29.47 20.48 241.8 11.80664063 1.439 93
7/25/2001 28.55 19.838 220.2 11.09990927 1.439 93 k and n filter
7/27/2001 34.97 22.579 302.5 13.39740467 1.549 93
8/6/2001 32.6 21.891 257.1 11.74455256 1.489 93
8/9/2001 33.83 21.979 287.1 13.06246872 1.539 93
8/16/2001 36.2 22.087 282 12.7676914 1.639 93
8/21/2001 20.36 12.055 154.1 12.78307756 1.689 93
8/27/2001 36.99 20.56 266.7 12.97178988 1.799 93
8/31/2001 44.59 22.532 302 13.40315995 1.979 93
9/6/2001 40.06 21.665 270.5 12.48557581 1.849 93
9/11/2001 36.37 19.883 241.4 12.141025 1.829 93
9/17/2001 40.57 22.676 301.7 13.30481566 1.789 93
9/19/2001 29.1 16.64 211.5 12.71033654 1.749 93
9/25/2001 38.42 21.595 269.7 12.48900208 1.779 93
9/27/2001 27.32 16.467 226.5 13.75478229 1.659 93
10/3/2001 32.87 21.083 222.9 10.57249917 1.559 93
10/8/2001 33.69 22.624 282.7 12.49557992 1.489 93
10/9/2001 14.97 10.33 130 12.58470474 1.449 93
10/11/2001 25.3 17.462 200.4 11.47634864 1.449 93
11/15/2001 19.72 14.094 171.1 12.1399177 1.399 93
11/18/2001 25.9 19.197 223.8 11.65807157 1.349 93
10/23/2001 26.6 19.571 240 12.26304226 1.359 93 oil
10/26/2001 18.38 14.258 174.4 12.23172956 1.289 93
10/30/2001 22.75 17.924 208.8 11.64918545 1.269 93
11/1/2001 13.13 9.732 121.9 12.52568845 1.349 93
11/6/2001 17.1 13.162 144.3 10.96337943 1.299 93
11/9/2001 31.86 22.774 298.5 13.1070519 1.399 93
11/13/2001 19.19 14.885 168.5 11.32012093 1.289 93 exhaust
11/15/2001 14.7 10.899 136.7 12.54243509 1.349 93
11/19/2001 19.85 14.715 169.9 11.54604145 1.349 93
11/20/2001 9.19 7.019 65.9 9.388801824 1.309 93
11/23/2001 15.86 12.116 155.8 12.85902938 1.309 93
11/28/2001 19.98 15.997 175 10.93955117 1.249 93
12/3/2001 19.02 14.753 172.5 11.69253711 1.289 93
12/5/2001 11.56 9.255 107 11.56131821 1.249 93
12/7/2001 13.91 11.136 140.1 12.58081897 1.249 93
12/10/2001 26.26 21.025 289.5 13.76932224 1.249 93
12/12/2001 14.19 11.365 128.2 11.28024637 1.249 93
12/14/2001 15.26 12.413 147.8 11.90687183 1.229 93
12/18/2001 18.95 15.803 196.5 12.43434791 1.199 93
12/23/2001 28.73 23.373 301.9 12.91661319 1.229 93
1/2/2002 15.61 12.499 122.2 9.776782143 1.249 93
1/4/2002 20.44 15.859 169.7 10.70054858 1.289 93
1/28/2002 29.46 22.005 279.5 12.70165871 1.339 93 trans
1/31/2002 22.8 18.109 208.1 11.49152355 1.259 93
2/4/2002 19.92 14.763 157.9 10.69565806 1.349 93
2/7/2002 16.92 13.548 155.9 11.50723354 1.249 93
2/11/2002 19.76 15.821 167.3 10.57455281 1.249 93
2/14/2002 25.59 19.252 217.9 11.31830459 1.329 93
2/18/2002 27.19 21.767 241.4 11.09018239 1.249 93
2/21/2002 19.6 15.694 175.2 11.16350198 1.249 93
2/25/2002 15.65 12.732 119.8 9.409362237 1.229 93
2/28/2002 22.17 16.678 180 10.79266099 1.329 93
3/4/2002 21.71 17.107 192.4 11.24685801 1.269 93
3/6/2002 18.32 13.786 171.1 12.41114174 1.329 93
3/11/2002 31.64 22.142 247.3 11.16881944 1.429 93
3/14/2002 23.39 16.143 167.3 10.3636251 1.449 93
3/19/2002 31.56 21.632 258.9 11.96838018 1.459 93
3/26/2002 20.37 13.233 160.8 12.15143958 1.539 93
4/1/2002 34.27 21.431 272.2 12.70122719 1.599 93 converter
4/8/2002 33.45 21.054 260.7 12.38244514 1.589 93 plugs
4/10/2002 23.21 14.885 212.3 14.26268055 1.559 93
4/15/2002 27.51 17.645 201.8 11.43666761 1.559 93

4/17/2002 25.77 16.637 220.9 13.27763419 1.549 93
4/22/2002 31.45 20.305 261.1 12.85890175 1.549 93
4/25/2002 34.56 22.752 291.3 12.80327004 1.519 93
4/29/2002 19.5 12.835 154.7 12.05298013 1.519 93
5/1/2002 26.46 17.193 211.4 12.29570174 1.539 93
5/4/2002 36.26 22.676 278.6 12.28611748 1.599 93
5/7/2002 29.46 19.021 274.6 14.43667525 1.549 93
5/11/2002 30.27 19.54 255.4 13.07062436 1.549 93
5/14/2002 16.49 10.376 134 12.91441789 1.589 93
5/17/2002 27.34 16.888 219.8 13.01515869 1.619 93
5/21/2002 28.21 17.424 226.4 12.99357208 1.619 93
5/27/2002 35.91 22.042 299 13.56501225 1.629 93
5/29/2002 18.11 11.188 166.1 14.84626385 1.619 93
5/31/2002 19.94 11.602 154.1 13.28219273 1.719 93
6/3/2002 18.07 10.891 131.8 12.10173538 1.659 93
6/5/2002 21.11 13.285 178.9 13.46631539 1.589 93
6/10/2002 34.11 22.022 301.8 13.70447734 1.549 92
6/12/2002 21 13.469 179.24 13.30759522 1.559 93
6/18/2002 28.68 17.939 248.8 13.86922348 1.599 93
6/22/2002 36.6 22.33 294.6 13.19301388 1.639 93
6/25/2002 29.03 17.709 235.9 13.32091027 1.639 93
6/28/2002 37.67 23.127 293.7 12.69944221 1.629 93
7/1/2002 15.51 9.18 139.3 15.17429194 1.689 93
7/5/2002 13.21 18.926 259.5 13.71129663 1.649 93
7/9/2002 24.16 14.306 168.4 11.77128478 1.689 93
7/11/2002 17.15 10.34 153.8 14.87427466 1.659 93
7/14/2002 18.73 11.091 124.6 11.23433414 1.689 93
7/16/2002 16.24 9.848 125.8 12.77416734 1.649 93
7/18/2002 24.44 14.47 211.7 14.63026952 1.689 93
7/22/2002 25.84 14.947 196.7 13.1598314 1.729 93
7/24/2002 21.1 12.206 166.3 13.62444699 1.729 93
7/29/2002 25.31 15.348 198.3 12.9202502 1.649 93
8/6/2002 29.97 18.983 238.9 12.58494442 1.579 93
8/13/2002 27.06 17.136 250.1 14.59500467 1.579 93
8/16/2002 38.42 23.302 317.9 13.64260578 1.649 93
8/20/2002 18.3 11.515 133.2 11.56752063 1.589 93 towing upnorth and oil change
8/24/2002 32.49 20.319 215.1 10.58615089 1.599 93 towing up north
8/25/2002 18.07 11.095 149.3 13.45651194 1.629 93 towing up north
8/27/2002 28.24 17.445 222.9 12.77730009 1.619 93
9/2/2002 34.91 21.43 312.5 14.58236118 1.629 93
10/2/2002 33.24 20.532 260.7 12.69725307 1.619 93
10/7/2002 31.06 18.499 244.3 13.20611925 1.679 93
10/10/2002 39.66 22.045 300.9 13.64935359 1.799 93
10/15/2002 43.13 22.713 305.5 13.45044688 1.899 93
10/18/2002 34.09 19.163 235.4 12.28408913 1.779 93
10/25/2002 23.95 13.933 180.7 12.96920979 1.719 93 spark plugs
10/28/2002 32.69 19.016 225.8 11.87421119 1.719 93
11/1/2002 35.1 20.903 274.2 13.1177343 1.679 93
11/5/2002 22.27 12.958 162.2 12.51736379 1.719 93
11/7/2002 25.11 14.61 188.8 12.92265572 1.719 93
11/9/2002 33.13 19.274 266.2 13.81135208 1.719 93
11/13/2002 23.78 13.997 182.7 13.05279703 1.699 93
11/15/2002 26.29 16.043 220.1 13.71937917 1.639 93
11/18/2002 13.61 8.619 105.2 12.2055923 1.579 93
11/20/2002 18.33 11.759 156.9 13.34297134 1.599 93
11/25/2002 34.66 22.521 293.6 13.03672128 1.539 93
11/29/2002 24.42 16.399 190.3 11.60436612 1.489 93
12/2/2002 28.12 18.883 255.3 13.52009744 1.489 93
12/4/2002 24.07 16.162 185.6 11.48372726 1.489 93
12/6/2002 22.17 14.89 177.9 11.94761585 1.489 93
12/10/2002 27.63 18.432 222.7 12.08224826 1.499 93
12/12/2002 22.23 15.236 187.6 12.31294303 1.459 93
12/16/2002 32.21 21.485 256.6 11.9432162 1.499 93
12/19/2002 27.05 17.462 198.4 11.36181423 1.549 93
12/21/2002 28.85 18.044 212.1 11.75459987 1.599 93
12/24/2002 24.29 15.19 179.2 11.79723502 1.599 93
12/28/2002 37.38 22.533 262.9 11.66733236 1.659 93
1/2/2003 35.27 21.257 243.8 11.4691631 1.659 93
1/3/2003 29.87 18.68 209.6 11.22055675 1.599 93
1/13/2003 29.26 17.426 200.7 11.51727304 1.679 93
1/22/2003 34.95 21.324 247.6 11.61132996 1.639 93
1/24/2003 22.82 13.59 160.1 11.78072112 1.679 93
1/28/2003 23.95 14.262 159.7 11.197588 1.679 93
1/31/2003 29.04 16.701 198.2 11.86755284 1.739 93
2/7/2003 28.08 15.105 197.2 13.05527971 1.859 93
2/5/2003 34.14 19.193 231.1 12.04084823 1.779 93
2/11/2003 23.43 12.604 150.5 11.94065376 1.859 93
2/14/2003 29.37 14.994 161.2 10.75096705 1.959 93
2/18/2003 28.05 14.769 158.4 10.72516758 1.899 93
2/24/2003 37.4 19.694 220.7 11.20645882 1.899 93
2/28/2003 35.04 17.887 217.8 12.17644099 1.959 93
3/5/2003 38.58 19.895 227.7 11.44508671 1.939 93
3/10/2003 34.08 17.396 201.8 11.6003679 1.959 93
3/12/2003 20.99 11.055 120.9 10.93622795 1.899 93
3/17/2003 18.97 9.992 127.5 12.76020817 1.899 93
3/20/2003 21.28 11.204 123.9 11.05855052 1.899 93
3/26/2003 27.31 14.769 180.8 12.24185795 1.849 93 exhaust
3/31/2003 33.57 18.66 224.1 12.0096463 1.799 93
4/2/2003 38.93 22.257 271.2 12.18493058 1.749 93
jim

I got 17.5 MPG on my last tank in city driving. 477 miles on 27.25 gals. My tank holds 30 gals. I was surprised since I've been getting around 16 MPG in city.

02 Screw, 4.6 and I get 17-18 town and 21-23 mpg's hiway.

16.8 93 octane

Magnum

Last Tank: 13.8 mpg 93 octane

97 SC XLT Short Bed
2" Lift, 285/85/16's, Hard Toneua

Avg 14.87 at 80% fwy. miles 89 octane

14.4 - 91 octane.

10.4 mpg all city miles 92 octane

Just recorded 12.9 in "hilly" highway driving, average speed of 50.

2003, Reg/Flare, 4x4, 5.4L, auto w/3.55 LS

417 miles on 27.1 gallons = 15.4 MPG 50/50 highway/city

12.8 mpg reformulated gas

running in 4H thru snow 1 day.