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Spinoff thread on gas engine MPG..

Posted on 5/9/13 at 8:56 pm
Posted by REB BEER
Laffy Yet
Member since Dec 2010
18143 posts
Posted on 5/9/13 at 8:56 pm
After reading the thread on diesel mpg, it got me wondering.

I have an 08 Silverado 4X4 with a 5.3L. Would it be worth it for me to get some sort of programmer to try and better my gas mileage? I spend a lot of time in the highway and put about 30k miles a year on it.

I don't drive real hard and get about 18 mpg right now.
Posted by DownshiftAndFloorIt
Here
Member since Jan 2011
72247 posts
Posted on 5/9/13 at 8:58 pm to
You will get slightly better MPG's if you can make yourself keep your foot out of it, but you'll be paying more for gas (most tunes require 93 octane) so the savings are nil at best.

The extra umph is worth it to some. Most people I know get them, run them for about 6 months, and then take them back off because they get tired of paying for premium gas.

ETA: Now a custom tune is a different monster and can pay off big time if your truck is already out of warranty.
This post was edited on 5/9/13 at 8:59 pm
Posted by N2cars
Member since Feb 2008
39860 posts
Posted on 5/9/13 at 8:58 pm to
No.
Posted by GREENHEAD22
Member since Nov 2009
20881 posts
Posted on 5/9/13 at 8:59 pm to
fricking 18? I have a brand new 2wd and am just getting 15mpg. This could be due though to my firm belief if given the chance I would become the most dominant Nascar driver to ever grace the track and do it by my 2nd year.
Posted by KingRanch
The Ranch
Member since Mar 2012
61759 posts
Posted on 5/9/13 at 9:00 pm to
quote:

I have a brand new 2wd and am just getting 15mpg


thats fricking horrible, i get 17.5ish hwy in my truck
Posted by GREENHEAD22
Member since Nov 2009
20881 posts
Posted on 5/9/13 at 9:01 pm to
Going to do a custom tune, intake, exhaust and maybe headers as soon as my warranty is up.
Posted by JAB528
The Mexican Ocean
Member since Jun 2012
16870 posts
Posted on 5/9/13 at 9:01 pm to
My van gets 11, but its a v10.
Posted by DownshiftAndFloorIt
Here
Member since Jan 2011
72247 posts
Posted on 5/9/13 at 9:02 pm to
Yea big green can roll around at 15 all day. I'd be pissed
Posted by GREENHEAD22
Member since Nov 2009
20881 posts
Posted on 5/9/13 at 9:02 pm to
Yea if doesn't get better soon I am taking it in and having them look to see what ratio it is set at. Thinking I may have gotten one that was supposed to be shipped out west or something.

Have heard it takes awhile to get up, only have 6k on it.
This post was edited on 5/9/13 at 9:04 pm
Posted by TulaneUVA
Member since Jun 2005
26231 posts
Posted on 5/9/13 at 9:03 pm to
quote:

thats fricking horrible, i get 17.5ish hwy in my truck


Same, and that's with ecoboost and a light foot
Posted by KingRanch
The Ranch
Member since Mar 2012
61759 posts
Posted on 5/9/13 at 9:03 pm to
quote:

Yea big green can roll around at 15 all day


Posted by JAB528
The Mexican Ocean
Member since Jun 2012
16870 posts
Posted on 5/9/13 at 9:04 pm to
The green monster got the 350 in it?
Posted by KingRanch
The Ranch
Member since Mar 2012
61759 posts
Posted on 5/9/13 at 9:04 pm to
quote:

Same, and that's with 5.4
Posted by JAB528
The Mexican Ocean
Member since Jun 2012
16870 posts
Posted on 5/9/13 at 9:06 pm to
You get 18 with a 5.4? You goin down hill at 50 mph?

My buddy only got 14 with his, he did drive it like he stole it though.
This post was edited on 5/9/13 at 9:07 pm
Posted by DownshiftAndFloorIt
Here
Member since Jan 2011
72247 posts
Posted on 5/9/13 at 9:08 pm to
Yea. It's a crate engine. Somewhere between 330 and 350hp at the flywheel.

ETA: And enough torque to pull boatsnhoes out of a snocone shop
This post was edited on 5/9/13 at 9:09 pm
Posted by KingRanch
The Ranch
Member since Mar 2012
61759 posts
Posted on 5/9/13 at 9:10 pm to
i get 17 easily

i ordered it with a 44 gallon tank, the biggest Ford had at the time.

i got about 750 miles to a tank
Posted by TulaneUVA
Member since Jun 2005
26231 posts
Posted on 5/9/13 at 9:10 pm to
quote:

And enough torque to pull boatsnhoes out of a snocone shop


I'd like to hear more on this
Posted by TulaneUVA
Member since Jun 2005
26231 posts
Posted on 5/9/13 at 9:10 pm to
quote:

i ordered it with a 44 gallon tank, the biggest Ford had at the time.

i got about 750 miles to a tank


Not sure how this improves mpg?
Posted by JAB528
The Mexican Ocean
Member since Jun 2012
16870 posts
Posted on 5/9/13 at 9:10 pm to
Nice. There's nothin wrong with that.
Posted by DownshiftAndFloorIt
Here
Member since Jan 2011
72247 posts
Posted on 5/9/13 at 9:10 pm to
That dude will go apeshit for a spanky splash sno cone
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