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Old 01-12-2011, 10:33 AM   #1 (permalink)
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Hello from Croatia

Hi,
my name is Andrej, 26 y.o., i'm from Croatia -> Google

I'm driving Toyota Corolla 2.0 diesel, 85KW, year 2006.
My MPG is 38 to 57.

I live in a small town (200.000 people) on the coast, here is all downhill and uphill wherever you go. Yes, the town is not so big, but here (same in all the Europe) the roads are little and traffic is big.

If the roads were flat, MPG would be about 70 with out problems.

I joined this forum/site to see how i can get more MPG.
Here, in Europe, gas/diesel is very expensive: cca. = 7,65 $/gallon.

Sorry for my bad English, my mother language is Croatian and Italian, English i had learned only in School and watching TV and movies

See ya!

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Old 01-12-2011, 11:21 AM   #2 (permalink)
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Hello Andrej, welcome to EM

$7.65 per gallon of diesel? That's even more than we have here (just shy of $6 last weekend). I'm surprised that there are still lots of drivers driving like fuel was free...

Have you modded your vehicle yet? Maybe higher tire pressure or a grille block?
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Old 01-12-2011, 11:22 AM   #3 (permalink)
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Welcome to ecomodder .

The European gang is growing ;-)
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Old 01-12-2011, 11:42 AM   #4 (permalink)
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Quote:
Originally Posted by Piwoslaw View Post
Hello Andrej, welcome to EM

$7.65 per gallon of diesel? That's even more than we have here (just shy of $6 last weekend). I'm surprised that there are still lots of drivers driving like fuel was free...

Have you modded your vehicle yet? Maybe higher tire pressure or a grille block?
7,65$ its price for gas, diesel is 6,91$.
Where are drivers drivin' like fuel was free??? And why do you think so?

I dont know how to modificate my car? How much did you get MPG with higher tire pressure, grill block, back tires "shild"...?
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Old 01-12-2011, 01:11 PM   #5 (permalink)
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Welcome aboard. Croatia is definitely on my short list of places I'd like to take a holiday. I've seen some beautiful pictures from a friend of mine on Flickr.

How much have you started to incorporate hypermiling techniques (see the 100+ Hypermiling Tips link at the very top of the page)? If you're driving a standard transmission and willing to do some extra work, like drive with your engine off while coasting down hills, you can really get some remarkable MPG. Obviously some caution needs to be shown, as you lose power brakes and steering, but with some practice it can make quite a difference in your mileage.
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Old 01-12-2011, 01:26 PM   #6 (permalink)
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yes, Croatia is beutiful country, for living, holiday, whatever...

I saw and red all the hypermiling techniques...

I cant turn the engine off while coasting down hill becaouse its too dangerous with traffic, small roads with lots of turns etc. I rather put in higher gear and cruise downhill but with enging running, steer and brakes full functionaly!!!

With downhill and in gear engine is running without gas/diesel, when you slow down to the minimum rpm, about 800, then engine is powered with gas/diesel.

With this mode i do not spend any diesel, its more secure and just little slower
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Old 01-12-2011, 01:49 PM   #7 (permalink)
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Quote:
Originally Posted by AndrejCF View Post
I cant turn the engine off while coasting down hill becaouse its too dangerous
I don't turn the engine off either when coasting, as I want to keep the powersteering and assisted brakes for safety.

But coasting still gives better results than using engine braking (or DFCO - decellerating Fuel Cut Off as it'soften called here).

Try coasting on the safe, slight downhills, and you'll get further up the next hill

Quote:
With downhill and in gear engine is running without gas/diesel, when you slow down to the minimum rpm, about 800, then engine is powered with gas/diesel.
That's the situation you have to avoid when using engine braking.

Quote:
With this mode i do not spend any diesel, its more secure and just little slower
When the hill is steep enough, you have to use engine braking for safety - and it doesn't even cost any fuel.

But when the hills are not so steep, it's more efficient to coast, even with the engine on.

Even on a flat road, it's more efficient to coast from further away than to use engine braking as I've found out.


There are plenty of tips for efficient driving in the hills - like not using cruise control.
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Old 01-12-2011, 02:41 PM   #8 (permalink)
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Quote:
Originally Posted by AndrejCF View Post
I dont know how to modificate my car? How much did you get MPG with higher tire pressure, grill block, back tires "shild"...?
Pumping the tires to higher pressure (3.5 bar) increases coasting distance (reduces rolling resistance), the grille block helps the engine warm up faster. I don't have any numbers for those, but my Kammback and rear wheel skirts were tested to lower fuel consumption by 7% at 70 km/h and 8% at 100 km/h.
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e·co·mod·ding: the art of turning vehicles into what they should be

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Piwoslaw's Peugeot 307sw modding thread

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Old 01-12-2011, 03:39 PM   #9 (permalink)
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to 3,5??? In Corolla manual its said that pressure need to be 2,4.

With higher pressure you are gambling with trackion and security!!!!
Also the consumption of tire is faster!?

Wheel skirts are so ugly, my opinion, i'll see to make skirts with possibitility to take them off easily so i can use them only for longer trips... when aerodinamics is needit
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Old 01-12-2011, 03:56 PM   #10 (permalink)
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Quote:
Originally Posted by AndrejCF View Post
to 3,5??? In Corolla manual its said that pressure need to be 2,4.
My car's door sticker says 2.8-3.2 bar, but the tires' max sidewall pressure is 3.5 bar. I started with MAX-10%=3.2 and increased it when I felt good with it. I will not go above 3.5 bar.

Quote:
Originally Posted by AndrejCF View Post
With higher pressure you are gambling with trackion and security!!!!
Also the consumption of tire is faster!?
That's what everyone says, but...
"Inflation pressure does not affect grip": Autospeed article.
It appears that increasing tire pressure reduces braking distance.

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e·co·mod·ding: the art of turning vehicles into what they should be

What matters is where you're going, not how fast.

"... we humans tend to screw up everything that's good enough as it is...or everything that we're attracted to, we love to go and defile it." - Chris Cornell

Piwoslaw's Peugeot 307sw modding thread

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