Information on fuel use for newbies

[cleanspeed1]

Frank Lee

poke

[euromodder]

Originally Posted by stAtrill

Are you speculating?

He isn't.
The indication of fuel not being (fully) burned is the amount of CO and HC in the exhaust.
These amounts are small compared to the fuel used, so here's little to be gained by having the fuel burn more completely - it already is.

It's just not being burned very efficiently in a regular ICE - hence lean-burn and Atkinson cycle on some engines.

I am here asking for ideas because being a hypermiler just isn't cutting it (we spend over a grand a month on gas...)

That's over 250 gallons ...
What kind of / how many vehicles / how far are you driving to burn that much fuel ?

[stAtrill]

Originally Posted by cleanspeed1

You mentioned electrifying a vehicle........ [...] We have some of the smartest electric car people here.

Whoa, this is awesome. And even someone attempting an S10 conversion (we have an astro, the work-van version). Muuuuch more room for batteries.

Originally Posted by euromodder

He isn't.
The indication of fuel not being (fully) burned is the amount of CO and HC in the exhaust.
These amounts are small compared to the fuel used, so here's little to be gained by having the fuel burn more completely - it already is.

Thank you for confirming his post. If this isn't the best route to take, I wanted to at least know why.

Originally Posted by euromodder

That's over 250 gallons ...
What kind of / how many vehicles / how far are you driving to burn that much fuel ?

Two vehicles, an SUV (Jeep Grand Cherokee) and a work van (Chevy Astro). The van is used for work 5-6 days a week at 120-150 miles a day, and the jeep is used weekly for intercity travel and errands. Using the trip and the known amount of fuel added, the van gets 16-17 miles a gallon and the jeep 18-19. The van is the candidate for conversion, as it is really close to the chevy S10, among other reasons. The jeep doesn't get enough use to warrant a full EV conversion (with the range that we need), so I was wondering about engine mods.

Honestly, I am about to that point where I might just give in and convert them both. I have been frustrated to no end by ICE's and their hidden price tag.

EDIT: Why was this moved?

[mort]

Originally Posted by euromodder

He isn't.
The indication of fuel not being (fully) burned is the amount of CO and HC in the exhaust.
These amounts are small compared to the fuel used, so here's little to be gained by having the fuel burn more completely - it already is.

My 2 cents. I edited this image from here.

-mort

[euromodder]

The HC (hydrocarbon)part is what could really be describe as unburned fuel.

On Diesels, the red portion is only 0.3 %, so there may still be some gains in petrol engines
But as most of those 1-5% is already CO , burning it further to CO2 is not going to gain much.


I think VAG missed a bit in this publication though ... page 8
"H2O – Water
is partly induced by the engine (atmospheric humidity) or occurs during low-temperature combustion (warm-up period)."

Water is a normal by-product of burning hydrocarbons ("fuel"), during all combustion processes.
The carbon-part gives the CO2 , the hydro(gen)-part giving water.

[FXSTi]

Originally Posted by stAtrill

EDIT: Why was this moved?

Click the link in the notices section near the top of the page, or here http://ecomodder.com/forum/showthrea...sed-16428.html