What add-ons have yall added for milage? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

jsbgump · 08-12-2008, 11:48 AM

I have a 06 GMC CC with the 5.3 and am thinking of adding some stuff to help the milage out some. I am looking into thethrottle body spacers/cold air intake/and exhaust. What have yall used and what made the biggest difference?

kevinr1970 · 08-12-2008, 08:21 PM

Exhaust, intake = note noticeable difference (despite their claims)

Wait4me PCM tune:
Before - 17/18.5 (Regular gas)
After - 18.5/21.5 (Regular) / 19.5/~23.2 (Super)
Both these are based off of single trips/tanks of gas. Need more trips to get true "average". But I have noticed that the past few times I have filled the tank I have averaged just over 20pmg with mostly mixed driving with small weekend trips thrown in.

I would like to try a few more things but haven't heard of any real noticeable MPG/power gainss unless you are prepared to spend some money.

Next big ticket item will be headers but not sure when that might happen.

kevinr1970 · 08-12-2008, 08:26 PM

PS; the tune is about the cheapest thing to try - $75 + shipping. Not sure if the price is still the same though.

I found through googling wait4me that there are as many people happy with the results as people that weren't (or knew someone that wasn't, or heard of someone that wasn't, or etc).

There is definately cliques out there for the different tuners. My truck is my DD and I am not looking for this thing to blow doors. But it has been pleasantly suprising the performance I have gotten vs. the MPG.

Maybe one day when a 5.3 or a 6.0 resides in my K5 I will research a bit more about power/MPG gains.

08-12-2008, 11:48 AM	#1
jsbgump Gone Fishing Join Date: Aug 2005 Location: Fort Worth, Texas 76135 Posts: 12,361	What add-ons have yall added for milage? I have a 06 GMC CC with the 5.3 and am thinking of adding some stuff to help the milage out some. I am looking into thethrottle body spacers/cold air intake/and exhaust. What have yall used and what made the biggest difference? __________________ 68 Chevy Short Fleetside LSX Swap Under Way 3.73 posi 2.5/4 drop Frame of resto has been started 2022 Hyundai Tucson Limited 2019 Chevy Traverse Redline Edition Wifes Ride Build Thread http://67-72chevytrucks.com/vboard/s...=1#post3483616

08-12-2008, 08:21 PM	#2
kevinr1970 Senior Member Join Date: Aug 2004 Location: Everett, WA Posts: 2,316	Re: What add-ons have yall added for milage? Exhaust, intake = note noticeable difference (despite their claims) Wait4me PCM tune: Before - 17/18.5 (Regular gas) After - 18.5/21.5 (Regular) / 19.5/~23.2 (Super) Both these are based off of single trips/tanks of gas. Need more trips to get true "average". But I have noticed that the past few times I have filled the tank I have averaged just over 20pmg with mostly mixed driving with small weekend trips thrown in. I would like to try a few more things but haven't heard of any real noticeable MPG/power gainss unless you are prepared to spend some money. Next big ticket item will be headers but not sure when that might happen. __________________ 2009 Honda Fit CfC (bsf 44.9 mpg) 2000 Tahoe Limited 1991 GMC CrewCab Dually 2wd, will end up swb, not dually and replace CCswb below 1991 GMC CrewCab Dually 4x4, just going to fix things up for now 1982/1989 K5/GMC Jimmy 2wd 1987 GMC 1/2 ton swb 2wd Crew (sold)

08-12-2008, 08:26 PM	#3
kevinr1970 Senior Member Join Date: Aug 2004 Location: Everett, WA Posts: 2,316	Re: What add-ons have yall added for milage? PS; the tune is about the cheapest thing to try - $75 + shipping. Not sure if the price is still the same though. I found through googling wait4me that there are as many people happy with the results as people that weren't (or knew someone that wasn't, or heard of someone that wasn't, or etc). There is definately cliques out there for the different tuners. My truck is my DD and I am not looking for this thing to blow doors. But it has been pleasantly suprising the performance I have gotten vs. the MPG. Maybe one day when a 5.3 or a 6.0 resides in my K5 I will research a bit more about power/MPG gains. __________________ 2009 Honda Fit CfC (bsf 44.9 mpg) 2000 Tahoe Limited 1991 GMC CrewCab Dually 2wd, will end up swb, not dually and replace CCswb below 1991 GMC CrewCab Dually 4x4, just going to fix things up for now 1982/1989 K5/GMC Jimmy 2wd 1987 GMC 1/2 ton swb 2wd Crew (sold)



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