Can someone explain to me what the "driver information
center" is on my 2006 Silverado?
I could have sworn my window sticker said "flex fuel" when
I bought this truck, and I saw this 85% ethanol at the pump
yesterday...which was almost 40 cents cheaper than regular
gasoline! I came home, found my window sticker, but it
doesn't say anything about flex fuel capable at all. Would
that mean I cannot use this ethanol? any percentage of it?
back east I think we had 10% and everyone used it, before
you ever heard of anything being "flex fuel" capable.
If it has a 5.3 engine and the 8th digit of the VIN is Z then it is a
flex fuel vehicle it will have a yellow gas cap with E85 / Gasoline
printed on it as well.
Chevrolet Silverado, GMC Sierra
5.3-liter V8 engine: 12/16 E85 MPG
Flexible fuel identification: Z
http://snipurl.com/t3y4 for an interesting read about E85.
Simply put, a flex-fuel vehicle using gasoline travels farther,
at a clip of about 3 miles per gallon. Thats what we discovered while
driving a 2007 Chevrolet Avalanche with flex-fuel capability. We clocked
an average fuel economy of 13.4 miles per gallon using regular grade
unleaded not so hot, but much better than E85. A tank of E85 gasoline
registered just 10.4 miles per gallon under virtually identical driving
conditions. This makes the use the E85 more expensive, by around $20
more per tank. And while that may seem like chump change, its exactly
the opposite of what people are currently looking to accomplish.
E85 will not save you money or mileage. E85 runs about 40-50 cents
cheaper per gallon, but it runs about 4-5 MPG less as well.
The average new GM truck will get 14mpg on standard gasoline.
x20 gallons at $2.05 a gallon (price in NW Ohio) is $41 This will get
you 280 miles.
On E85, you will get about 9.5mpg.
x20 gallons at $1.70 a gallon is $34 This will get you 190 miles.
In order to make up the E85 mileage difference, you will need to spend:
9.475 gallons at $1.70 a gallon = $16.11
So in order to get 280 miles out of your truck, you will need:
$41.00 of standard gas
$50.11 of E85 gas
using prices of $2.05 std gas & $1.70 E85 gas. Basically 25% more
The same price percentage differences will occur at any price
While I think the flex-fuel vehicles are a great idea, it'd be nice if
E85-only vehicles were offered when the availability of E85 is up to
An engine built to take advantage of the higher-octane E85 could
potentially pull the same kind of MPG numbers as an equivalent vehicle
running gasoline. You probably wouldn't be able to run gasoline in it,
but as stated earlier, if E85 were readily available it probably
wouldn't be an issue.
To make the same amount of power running E85 as regular unleaded (87
octane here), you would have to raise the compression ratio to say
14.0:1. Basically E85 is gasoline-alcohol blend. Alcohol fuels require
higher compression to make the same power.
I have found one gas station around here selling Soy-based Bio-Diesel.
No post consumer content, and it cost as much as the new low sulfur (15
PPM) diesel. I think large fuel companies Should make post consumer
waste Bio-Diesel, and sell it as well as low sulfur Diesel at the same
station. heck even a partial post consumer blend (50/50) with soy
bio-diesel would be nice.
I should've been more specific, but the higher-compression ratio was
exactly what I meant. C/R's that would be unsuitable on pump gasoline
would be just fine on E85 because of its high octane rating.
It's just that with the lack of distribution, it's not feasible to have
an E85-only vehicle. If it were more common, I could see building an
engine to use it exclusively.
Charles Bendig wrote:
Where are you getting your milage from? The sticker on most of the new GM
trucks if 16/19 for 4x4 and 17/20 for 2wd. Lowest I have ever gotten with
my 4x4 is 16mpg. I regularly get 400-450 miles from a tank.
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