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 Your Car's FUEL CONSUMPTION, needs info, please...Topic merged..again

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SUSkyheng
post Jul 18 2006, 02:24 AM

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Wira 2003
Milage done : 101000km
FC : 13.5km/l
modification done : bypass exhaust filter, using Bosch Super 4, 9.5mm plug cable.
Average speed : 120km/h on trunk roads
Driving style : 1st-4th gear rpm max <3000rpm, 5th gear >3000rpm
Fuel always maintain at full, lowest is 50%.
Tyres pressure : 230-235kpa
ECU adjusted to get engine output effiency at 90%, before is 70% by EON service center during free service
Idling timing at 700-900, want to try 600 but engine vibrates
before modifications done, FC : 11.5km/l
SUSkyheng
post Jul 28 2006, 10:03 PM

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QUOTE(ceo684 @ Jul 28 2006, 02:59 PM)
When the needle is pointing straight up (~70-90kmh) that's the most efficient spot.
*
Should be engine rpm at 2000-2500, correct me if I'm wrong.
SUSkyheng
post Aug 8 2006, 03:27 AM

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latest update on Wira 2003 :
FC : 16km/l, full tank ~ 640km
Oil used : Castrol Magnetic
Driving condition : trunk road with 20 corners
Speed : max speed 90km/h, rpm keep below 3k
Total milage done : 104000km
Mod done : tyre pressure at 235kpa, bypass exhaust filter, Bosch Super 4 and 9.5mm plug cable
SUSkyheng
post Dec 10 2010, 04:20 PM

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Mine :
Wira 2003 manual
engine remain standard, using 9.5mm plug cable, Bosch Super 4
engine oil : Elf semi-syn
mileage done : 250000km
petrol : ESSO RON95
driving condition : 30% coastal road, 70% city
Average speed : >90km/h(to reach work place within 35 minutes, 45km including traffic jam wasted 15 minutes)
top speed :160km/h
FC : average 13km/l, best is 14km/l

Added on December 10, 2010, 4:22 pm
QUOTE(AMeGG @ Dec 10 2010, 04:11 PM)
just 1/2 complete my school holiday journey from Sg Petani to JB and turn back to N9..

Using Toyota Avanza 1.5G Auto (just change engine oil before travelling, used Lexus Oil Fully Sintetik)
also just change to new tyre 4pcs .. 195/60 R15
Loaded with 2 adult & 2 children... 

mileage start (Sg Petani) = 49430km
mileage end  (Senawang) = 51022km

Total mileage = 1592km
Total fuel =RM210 (3x pump full tank) RM70 per full tank
Use RON95

Average speed = 100-120km/h (mostly below 110km/h)
Driving condition= Highway = 65%      City = 35%
so.. Is my FC is good, average or terrible..
Please somebody tell me..TQ
*
Now I know Toyota's good FC is pure marketing gimmick... Lucky never fall in to their trap....

This post has been edited by kyheng: Dec 10 2010, 04:22 PM
SUSkyheng
post Dec 10 2010, 07:49 PM

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No no no... Toyota SA told me that 1.5 Avanza G can give at least 18km/l when I visited their show room....

Added on December 10, 2010, 7:50 pm
QUOTE(AhKoo @ Dec 10 2010, 05:31 PM)
urs is 1.5?
supreme FC!@@
*
Yup, 1.5... Now still thinking of ways to make it constant at >14km/l with same driving style....

This post has been edited by kyheng: Dec 10 2010, 07:50 PM
SUSkyheng
post Dec 18 2010, 02:05 PM

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QUOTE(monster2020 @ Dec 16 2010, 05:19 PM)
Avanza ?

Wah 18Km / 1 liter ? shocking.gif  sweat.gif

Siao that is alot lee. auto or manual ?

no aircorn ? wub.gif
Take out all the interial ? wub.gif
*
Well, when some SA wants to secure a business, anything including cheating they will do... Only never think they will talk like this... I from start till now never believes that Toyota's VVTi or Honda's VTEC can safe petrol if compare to other brands. Any car with RPM <3000 and constant speed sure the FC will be superior but then how many roads in Malaysia can gives us such condition? Just like I'm going to work from Seremban to PD, I can always pay rm3.20 toll to get my FC 16km/l from my current 13.5km/l when driving on coastal roads.
SUSkyheng
post Dec 18 2010, 05:54 PM

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QUOTE(gregy @ Dec 18 2010, 03:26 PM)
Nowadays manufacturers quote a few different consumption figures so buyers can make their own judgments, i.e., urban, extra urban and combined. It's always good to see the urban figures cos that's the most typical figures that ppl living and working in the city will get.

Over my 20yrs of driving I've also learnt another common misconception, that higher revs at top gear means higher consumption. It really depends on engine size and gear ratios for any given car weight.

Example: A 1-litre Kelisa doing 3.3k rpm at 100km/h vs an Accord 2-litre doing 1.9k rpm at 100km/h. It doesn't mean that the Kelisa is burning more fuel, on the contrary it's actually burning less due to the smaller displacement:

http://www.stealth316.com/2-air-fuel-flow.htm  This website lets you calculate roughly how much fuel is used at any given rpm/cubic capacity of an engine.

Based on the site, a 1,000cc car doing 3.3k rpm is burning around 216.17cc of fuel per minute. A 2,000cc car doing 1.9k rpm will burn around 248.93cc/min
*
Well, if everyone like you, for sure more people won't be that easily got cheated.... If you read the ads, they always state 90km/h constant at straight road. Did they state speed at 110km/h and on climbing up hills? Because they know a fact, no car will be efficient on this.
SUSkyheng
post Dec 19 2010, 11:39 AM

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If buying a car = rob a bank
Then buying a hybrid = steal from bank
Is still wrong anyway, if considering polluting the enviroment by releasing CO2.
Like Civic Hybrid, it only registers 1.3 on engine capacity but actual 1.8 because the power pack contributes another 500cc. Then Honda compare their Hybrid's emissions to other unefficeint 1.8 engines. For sure Civic Hybrid wins.. But did they compare it with 1.3 engines?
But then people now are educated such that wasting rm1000 to safe rm0.10 is right.... So.....
SUSkyheng
post Jan 7 2011, 11:19 PM

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That's means your skill are questionable....
Buying a fuel efficient car but without good driving habits will result to poor FC....
SUSkyheng
post Jan 7 2011, 11:32 PM

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Some simple mods(plug cable and plug), extractor and removing the catalytic convertor can help improve the FC, if your skill are ok.... Also pump your tyre slightly higher pressure(5-10kpa from norm), your car will be "lighter"....
If do the above, can give you 2-10%
Fuel saver won't help, most of the time... But injection cleaner can help, not much, maybe 2-5%.....
Reseting ECU won't help..... It just to fullfill your expectations.
SUSkyheng
post Jan 17 2011, 08:16 PM

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^All you need is rm800(rm400 for 4 times service) per year and you are good to go.... Rm400 is for you to change gear oil, brake fluid, brake pad....

Added on January 17, 2011, 8:17 pmBTW, rm400 is the minimum you must spend... If got other parts going to fail, that also you must change.... Today just strike my brake pump's gasket failed....

This post has been edited by kyheng: Jan 17 2011, 08:17 PM
SUSkyheng
post Jan 24 2011, 12:54 PM

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If your fuel tank is rectangle then you can say the above calculations are wrong, else, that's the best method to calculate...
SUSkyheng
post Jan 30 2011, 01:07 PM

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"If"......
SUSkyheng
post Feb 17 2011, 08:45 PM

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QUOTE(3xeCutoR @ Feb 17 2011, 05:27 PM)
VIOS E 1.5 2009
petrol used: RON95
mileage thus far: 20000++ km
FC:  consistently around 11.5 km/L
driving condition: 100% stop-go city driving, routine of 10+ km per day travels with average of 10 traffic lights (Typical Melaka roads flooded with many traffic lights)

On 100% highway it can reach 15km/L to 16km/L!
*
Wow, 2 years Toyota that boast that very good fuel efficiencies can get 11.5km...
My balia 8 year old car that never boast about this can give me 13.5-15km/l with total of 15 traffic lights... Lucky I never trust what Toyota always boast about....
SUSkyheng
post Feb 20 2011, 02:43 PM

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Stated already, balia car..... And is 80% traffic jam and 20% trunk roads....

This post has been edited by kyheng: Feb 20 2011, 02:44 PM
SUSkyheng
post Feb 25 2011, 04:36 PM

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QUOTE(kidmad @ Feb 20 2011, 03:02 PM)
lol, you are just trying to prove that Vios Superb FC is just a marketing gimmick. haha
As a matter of fact, yes, Toyota's good FC on Vios are marketing gimmick.....

Added on February 25, 2011, 4:37 pm
QUOTE(CHIP CN @ Feb 20 2011, 03:32 PM)
makan minyak.... my persona 70 leh buat 500km...
*
This, answer a thousand questions....

This post has been edited by kyheng: Feb 25 2011, 04:37 PM
SUSkyheng
post Mar 2 2011, 06:57 PM

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Quite ok I would say.... Get the injection system cleaned 1 time and it will improve a bit to 15-16km/l. Or can try using 3M(~rm18-20) or Wynn's(~rm30-35) fuel injecion cleaner.
SUSkyheng
post Mar 2 2011, 07:36 PM

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For me, regular service is a must on brakes, GB and engine.
Some mods on my Wira :
9.5mm spark plug cable
Bosch Super 4 spark plugs (can be used till 50-70kkm)
add fuel injection cleaner once every 2000km or earlier if your exhuast got strong carbon or wax smell during morning cold start. A rm3 alcohol from hardware shop also can do the trick. But if worry, just use the fuel injection cleaner.
bypass the catalytic convertor and change the extractor(not that effective)
SUSkyheng
post Mar 2 2011, 09:39 PM

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No problem... We care we share.... Still, our right leg matters....
SUSkyheng
post Mar 3 2011, 10:21 AM

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Have to get TS to do the job....
Always be a kiasulang on forking money to feed our car... And you will come out ways to do this, haha....
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