Jaymz Posted May 20, 2009 Report Share Posted May 20, 2009 (edited) I expected a little gain but this seems odd to me.. I averaged 13.9 on dash.. This is after basically 3 years of driving, never changed.. after the Radix install I reset it.. I'm sitting at 23.2 now.. I thought it was way off so I left it.. I've driven it through town and back for over a week now and it goes from 22.8 to 23.2 by the time I get home ( 12 miles of hwy ) I take the same EXACT way to my business, never changes and I have the same driving habbits This can't be right can it ? Edited May 21, 2009 by JaymzSS (see edit history) Quote Link to comment Share on other sites More sharing options...
lilmarv1117 Posted May 21, 2009 Report Share Posted May 21, 2009 (edited) city i get 12.5 and highway the best I got was 16...but that only happened once....I am more 12.5 city and 14 highway..So I take it your truck is running now? Edited May 21, 2009 by lilmarv1117 (see edit history) Quote Link to comment Share on other sites More sharing options...
Black2003SS Posted May 21, 2009 Report Share Posted May 21, 2009 As the Chinese man said when his mentally handicapped child was born... "Sum Ting Wong" Something is not right Derek. I know you have been having all sorts of issues. I dont know how our trucks compute gas mileage. Quote Link to comment Share on other sites More sharing options...
brobradh77 Posted May 21, 2009 Report Share Posted May 21, 2009 i see around 12 in town and around 17 on the highway Quote Link to comment Share on other sites More sharing options...
Jaymz Posted May 21, 2009 Author Report Share Posted May 21, 2009 As the Chinese man said when his mentally handicapped child was born... "Sum Ting Wong" I would agree.. makes me nervous.. i see around 12 in town and around 17 on the highway thats exactly what I was assuming I would get Quote Link to comment Share on other sites More sharing options...
BigCountry Posted May 21, 2009 Report Share Posted May 21, 2009 Hand calculate the MPG and see how bad off it is for starters Quote Link to comment Share on other sites More sharing options...
mcmahan Posted May 21, 2009 Report Share Posted May 21, 2009 after my wheatley tune my mpg went up. i drove down to the coast last weekend wich is about 180 miles and my average was 22.7 most of the time. my city milage is about 17.3 so it could be that idk Quote Link to comment Share on other sites More sharing options...
2003_SuperSport Posted May 21, 2009 Report Share Posted May 21, 2009 I expected a little gain but this seems odd to me.. I averaged 13.9 on dash.. This is after basically 3 years of driving, never changed.. after the Radix install I reset it.. I'm sitting at 23.2 now.. I thought it was way off so I left it.. I've driven it through town and back for over a week now and it goes from 22.8 to 23.2 by the time I get home ( 12 miles of hwy ) I take the same EXACT way to my business, never changes and I have the same driving habbits This can't be right can it ? Yeah that doesn't sound right. i would hand calculate as well. Fill your truck up all the way, set your trip meter to zero, drive about a quarter to half a tank, fill up again to the top, and divide your trip miles by the number of gallons you put in to fill. This little method should be close enough to measure if something is right or wrong. Good luck bud. Quote Link to comment Share on other sites More sharing options...
RAYRAY25 Posted May 21, 2009 Report Share Posted May 21, 2009 As the Chinese man said when his mentally handicapped child was born... "Sum Ting Wong" Something is not right Derek. I know you have been having all sorts of issues. I dont know how our trucks compute gas mileage. "Sum Ting Wong" alright... you bought a s/c and your driving habits didn't change??? Put it to the floor and your mileage will go back to what your used to. Quote Link to comment Share on other sites More sharing options...
Black2003SS Posted May 21, 2009 Report Share Posted May 21, 2009 Hand calculate the MPG and see how bad off it is for starters Good idea. after my wheatley tune my mpg went up. i drove down to the coast last weekend wich is about 180 miles and my average was 22.7 most of the time. my city milage is about 17.3 so it could be that idk Thats good mileage for a 2WD Silverado. Derek is awd and supercharged with 4.10 gears. I average about 12.7 around town and around 15 on the freeway with my radix setup. Quote Link to comment Share on other sites More sharing options...
sleepingcrna Posted May 21, 2009 Report Share Posted May 21, 2009 [quote name='Black2003SS' date='May 21 2009, 11:14 AM' post='628456' Thats good mileage for a 2WD Silverado. Derek is awd and supercharged with 4.10 gears. I average about 12.7 around town and around 15 on the freeway with my radix setup. Quote Link to comment Share on other sites More sharing options...
pursuit2550 Posted May 21, 2009 Report Share Posted May 21, 2009 On my way to work today, I reset my computer and it was reading between 19-20 @ 65-70mph. Quote Link to comment Share on other sites More sharing options...
delay18 Posted May 21, 2009 Report Share Posted May 21, 2009 Hmmmm. I may have to use this thread to my advantage. "Look hunny if I put a super charger on the truck I will jump up to 22mpg! Imagine what I would get with a blown lsx?!" Haha Quote Link to comment Share on other sites More sharing options...
Jaymz Posted May 21, 2009 Author Report Share Posted May 21, 2009 "Sum Ting Wong" alright... you bought a s/c and your driving habits didn't change??? Put it to the floor and your mileage will go back to what your used to. I like this guy... Oh I'll be mashing on it as soon as my AFR and timing is right, trust me as soon as the rain lets up, I'll go out and fill it up.. do the math on it manually and see what it tells me Good excuse to drive it everywhere Quote Link to comment Share on other sites More sharing options...
delay18 Posted May 21, 2009 Report Share Posted May 21, 2009 "Sum Ting Wong" alright... you bought a s/c and your driving habits didn't change??? Put it to the floor and your mileage will go back to what your used to. Quote Link to comment Share on other sites More sharing options...
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