Gas MPG- idle gas burn

[steve cury]

Hey All

newbie, Sierra elevation 5.3/8 8 speed. just bought and in construction using truck alot and notice major gas burn in idle. compared to old Ford F 150 or Ram it seems there is not a restrictor. like the hwy mpg/ but city really sucks. 

Any thoughts or chips to use to save gas burn at idle ?

[CamGTP]

Nope, nothing will fix that. They already idle at 500-550rpm when hot and if you use the AC it will burn more fuel.

 

I get 9-12mpg in the city up here in Minnesota in the winter because I use my remote start alot and drive only city with speed limits under 50mph for my commute to work. Summer ain't much better, only get 14ish city.

[steve cury]

Cool

Thanks for input. what about after market fuel chips ?? do they even work or all BS ?

 

with gas prices out of this world trying to save $$ thx 

[Grumpy Bear]

38 minutes ago, steve cury said:

Cool

Thanks for input. what about after market fuel chips ?? do they even work or all BS ?

 

with gas prices out of this world trying to save $$ thx 

 

17 hours ago, CamGTP said:

Nope, nothing will fix that.

 

Well, okay...shutting it off when not moving will help allot. 

Edited November 15, 2021 by Grumpy Bear

[newdude]

On 11/14/2021 at 8:30 AM, steve cury said:

Hey All

newbie, Sierra elevation 5.3/8 8 speed. just bought and in construction using truck alot and notice major gas burn in idle. compared to old Ford F 150 or Ram it seems there is not a restrictor. like the hwy mpg/ but city really sucks. 

Any thoughts or chips to use to save gas burn at idle ?

 

 

Yea, stop idling.  No "chips" that will save you fuel idling either.  

[steve cury]

alright thx. what about chip for less fuel burn at lower gears ? are those chips for real ? or garbage ??

[Grumpy Bear]

1 hour ago, steve cury said:

alright thx. what about chip for less fuel burn at lower gears ? are those chips for real ? or garbage ??

 

Steve...Once upon a time a long time ago in a land far far way was a motor with a carburetor and Kettering ignition and in those days the tune from the factory was plain awful. Almost anyone could improve combustion, economy and power with a screwdriver and a matchbook cover. 

 

Those days are past. Todays tune are much leaner and cleaner and while a few real sharp guys with some expensive equipment can get a few more horsepower from a stock motor even they can not do so as cheaply as we once could. 

 

If you want to make a real difference in your mileage buy yourself some 'feed back' like a Linear Logic Scan Gauge II plug in and teach yourself to drive frugally. Let it instruct you on your habits in real time. There is some to found as well in proper maintenance and good lubrication choices but there are no longer major slices of pie to be taken from the tin no matter what the marketing types are saying. 

[customboss]

On 11/14/2021 at 6:30 AM, steve cury said:

Hey All

newbie, Sierra elevation 5.3/8 8 speed. just bought and in construction using truck alot and notice major gas burn in idle. compared to old Ford F 150 or Ram it seems there is not a restrictor. like the hwy mpg/ but city really sucks. 

Any thoughts or chips to use to save gas burn at idle ?

Everyone has given solid consult and good advice.

 

I will add that brand new vehicles of many makes including GM will have defective coil/s.  They can partially fail or have corrosion on contacts etc that will affect the proper fire to the plug. I will ruin your MPG needlessly and the engines will not feel like they are missing.  MIL/CEL codes will NOT set unless it totally fails. 

 

Check the contacts and connections for corrosion and good contact.

 

Dealers really have no real effective way to detect a partially failing coil or coils but that can really affect a brand new unit. 

 

When I saw  high fuels dilution and elevated nitration in tests run both on chemical testing of engine oil and engine test cell data many times we saw coil partial failure as the cause.  The exhaust bag chemical and gas testing may or may not show this depending on effective after-treatment. No after-treatment we could see the poorly combusted fuel. 

 

 

 

 

 

 

[Black02Silverado]

An idling engine burns fuel at a set rate. You can't lower that rate.  If you did then it wouldn't run, hence idle.  The only way to save fuel is to drive only when you have to. 

[Transient]

Should've bought a 4 cylinder.  Fewer cylinders mean less gas burned. 

[diyer2]

I'm a retired construction worker. Your truck is the most expensive tool you own. Take care of it and drive it for years.  Fuel cost is directly related to the price of gas. Idle time, foot control are your best deterrent. 

There is no magic chip. 

 

[steve cury]

thanks for all posts. great points and input. next vehicle will be a smaller exo diesel or 4. maybe even electric but that EV seems far away to make it affordable for most buyers. I am excited to see Ford F series lighting!!

 

[Transient]

I hear you.  I regret getting the 6.2 because of the cost of fuel.  It's now over $5/gal in San Diego.  However, I would've hated getting the 3.0 Duramax because it wasn't the 6.2.  I wish I could afford 2 trucks.

[steve cury]

I agree, the track to Ev needs time and hybrid vehicles may be the thing to transition correctly over 10 to 20 years. you see how fu...ked it gets when you rush to leave a foreign country that we been fighting in for 20 years. our government doesn't do much right anymore and bows to whatever is popular foe votes

[Grumpy Bear]

15 hours ago, steve cury said:

I agree, the track to Ev needs time and hybrid vehicles may be the thing to transition correctly over 10 to 20 years. you see how fu...ked it gets when you rush to leave a foreign country that we been fighting in for 20 years. our government doesn't do much right anymore and bows to whatever is popular foe votes

 

I'm not seeing how one tracks with the other. 

 

Sounds like: 

Baby Crocks are cute so..

The Raiders are going to be then next Super Bowl champs

 

Or is this general delivery hate mail?