Looking to actually gain some MPG

[TxTruckMan]

Tonneau covers helped more back when trucks weren't put into wind tunnels - now they all are. The "spoiler" on your tailgate now does what the tonneau cover used to do - smooth the air over the back of the truck.

 

No "power" mods (intake, exhaust, tune) will help with FE. You can only hope to not make it worse. If they did, OEMs would do it. Larger /heavier tires will make it worse.

 

Your only options are to keep your stock tires, keep them aired up, and drive it like your grandma.

 

I really think the Range AFM-plus (http://www.rangetechnology.com/pages/v4) may help with FE, but no telling what it will do to your engine long-term.

[robvas]

I lost about .5 mpg on the highway (200+ mile trips, north/south as well as east/west) according to the DIC when I went back to the stock intake from my K&N. Sounds weird but those are the numbers.

[CptMcSaug]

Also a catch can may help maintain FE long term.

[Vic15]

Check your tire air pressure regularly.

[Glava2876]

I average 16 in town, about 17-18 highway. Never seen, over the course of a full tank, anything greater than 20mpg average. That was also all mountain driving which I thought was pretty good for cruising 80mph

I have the 6.2 8A in my GMC. This weekend I did a trip on the NYS Thruway and got an indicated 22.2 MPG going 72mph -running Sunoco 91octane.

[Justin MacGillivray]

At about 12,000 miles my average is 17mpg. Most of those miles are commuting 106 round trip miles to and from work over mountains and stuck in traffic. I'd say it's pretty good for a lot of stop and go traffic and I will step on it when I merge onto the freeway. Best I got from the DIC is 24.1 for a 50 mile range was coming down from a trip up into the mountains with no stop signs or stop lights to effect any change in throttle much. Just coasting and cruising. But I've averaged 19-21 with cruise control at 75mph on the highway. Still stock for now.

[Dustpan86]

What about going to different gears in the rearend? might lower your RPMs at highway speed

[LongrangeLauber]

What about going to different gears in the rearend? might lower your RPMs at highway speed

Then someone, such as myself, who uses their truck for towing will not be able to tow what they need to. You'd be going to a higher gear (lower numerically) causing the truck to struggle. We shouldn't have to modify our trucks to keep them from shaking lol

[Justin Nachazel]

Then someone, such as myself, who uses their truck for towing will not be able to tow what they need to. You'd be going to a higher gear (lower numerically) causing the truck to struggle. We shouldn't have to modify our trucks to keep them from shaking lol

I agree but at the same time regearing could work? I have the tow package on mine. Do you guys get that weird lurch too when going from 1st to 2nd gear?

[robvas]

What about going to different gears in the rearend? might lower your RPMs at highway speed

Rear gearing the front and rear-diff would be $2,000 +

 

That buys a lot of gas!

[TxTruckMan]

And you have max tow? Talk about neutering your truck. Do not re-gear for fuel economy. Either try the Range technology AFM+ module or leave it alone and drive line a granny. Gas is cheap now anyway.

[ember1205]

And you have max tow? Talk about neutering your truck. Do not re-gear for fuel economy. Either try the Range technology AFM+ module or leave it alone and drive line a granny. Gas is cheap now anyway.

I'm kind of doubting it's Max Tow... Expecting it's "just" the tow package (which doesn't actually mean much).

[GDI Tech]

Installing the Elite E2-X system will give 1-3 MPG improvement as it eliminates most knock retard by keeping the oil mist out of the compression stroke so the timing advance can always be optimum. More power and better fuel economy anytime you can run the most advance possible. Fleet owners buy and install these for fuel savings only as they trade every 3 years on average so they are not as concerned with long term damage for the intake valve coking issues.

[ember1205]

So, MPG at the cost of damage to the motor?

[ZXTOM]

 

Yeah, that just is not true. If it even got 2 mpg then bean counters be damned they would find $20 to mass install those in every vehicle (especially the new ones with DI). It could then leap which ever vehicle they are installing them in over most of their competitors in terms of class leading mpg, think of the advertising and sales!

 

Why such the large spread? Not confident in what it can return? That is a large difference from the low end to the high end. That is like saying if you buy this intake it will give you anywhere from 10 to 30 hp!

 

Who do you work for? Every post you are telling people to buy the "Elite E2-X catch can", that is all you participate in is talks relating to catch cans. Kind of difficult to buy claims that extravagant when you are a spokesperson... Are you with in the rules of the forum to do this if you are selling for someone?

 

OP, do what you feel comfortable with. If you want to drink the kool aid of salesman knock your self out. It is a truck, mpg will be minimally impacted in most anything you do. If you want larger gains it will be at the expense of other capabilities the truck was designed for (towing, hauling, off road, longevity, ect). With mpg being so important these days (and a fairly large selling point) you can be damned sure the engineers are doing as much as they can with in the hundreds of millions of dollars of their budget to get everything they can out of the mpg to top its competitors, not to mention keeping the capabilities near or above the top of the field.

 

Tyler

 

 

Very well typed post. If you wanted more MPG's should have bought a Civic..

 

I purchased my truck to use it for a TRUCK, towing, hauling, and working at times. I think my truck bone stock gets great MPG's, 20 years ago it was unheard of to get this mileage out of a V8 truck..

 

I'm very happy with my silverado and don't want to change a thing except for some real all-terrain tires..