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Thanks for the reply Hucorey. The AE data was recorded without tow. I didn't specify in the earlier post. I just installed my PHP Phoenix Gryphon chip today. Huge difference in performance. Wow! Maybe the 65 HP tow tune won't make it less than 10 mpg.
Any idea if my numbers sound inline?
2001 F350 XLT SRW extended cab. 2007 grill/headlight/Turn signal tow mirrors conversion. Large Filter NAPA 6637, straight piped, 35"s on 16"s, leveled with 2" Tough Country leaf springs. PHP 6 position Phoenix Gryphon tunes.