[Discussion] Technical - Fuel Consumption

[Kinetic]

change engine oil, air filter, oil filter, plugs regularly will help

maintain correct tire pressure also will help

change gear at 5rpm unless necessary

ride constant speed, dun keep on open and close throttle.

 

all this will help u save petrol

[raz]

Originally posted by skateboy@Nov 27 2005, 05:30 PM

u r riding spec3 rite??

spec 3 vtec cut in rate is faster compared to spec 1??

 

then how do u attain the kind of fuel consumption?

change oil filter every 10,000km

change to KNN air filter

 

check tire pressure every 1~2 weeks

 

average speed 85km/h ~100km/h

try not to open vtec / keep it 6rpm n below

 

my best record 365km / 15litres (esso)

occasionally use vpower... FC not as good (ard 22km/l) but can feel the power

[Kinetic]

6750rpm

[skateboy]

Originally posted by Kinetic@Nov 27 2005, 10:51 PM

6750rpm

so actually travelling at 100km/h at 6500rpm is ok??

[skateboy]

thanx to all the replies n helps... it's the thought that counts!!

 

anyway, will service the carb since it's untouched for 4 yeras...

air filter will wash, oil mayb change oso...

since it's a 2nd hand bike, it's better to re-service everything myself then keep track again...

 

would like to ask, wat's the ideal tyre pressure front n back??

[Kinetic]

how come ur 100km/h so high rpm?

mine only 6100rpm like tt.. i am 45teeth

when vetc open u can hear ur exhaust sound different one.

[skateboy]

Originally posted by Kinetic@Nov 27 2005, 11:23 PM

how come ur 100km/h so high rpm?

mine only 6100rpm like tt.. i am 45teeth

when vetc open u can hear ur exhaust sound different one.

dunno leh... 2nd hand wan...

 

mine is 44T...

 

no wonder i can hear a funny sound when riding at 90 to 100...dunno that's the sound of vtec...

[NoobVtec2]

hey guys, will tyre botak affect fuel consumption? Heard that it will affect leh.. is it true?

 

My fuel consump is abt 18km/litre now.. haiz was abt 20-21km last time. Sparkplug,EO,oil filter,K&N air filtter all just changed and clean. Chain and sprocket also new, 15F,44R. Tyre pressure 270 front and back. Riding habit same. Only pillion my gf but not often nowdays. Both light weight. Only 2 tins i haven't do is to change tyre and wash and tune carb. But my carb seem gd leh, rpm needle smooth and never vibrate when idle. :help:

[Kinetic]

not sure.. this one too cheem.. i think maybe u go ur bike shop do ur settings again? make back original again?

[osiris]

Originally posted by NoobVtec2@Nov 27 2005, 11:38 PM

hey guys, will tyre botak affect fuel consumption? Heard that it will affect leh.. is it true?

 

My fuel consump is abt 18km/litre now.. haiz was abt 20-21km last time. Sparkplug,EO,oil filter,K&N air filtter all just changed and clean. Chain and sprocket also new, 15F,44R. Tyre pressure 270 front and back. Riding habit same. Only pillion my gf but not often nowdays. Both light weight. Only 2 tins i haven't do is to change tyre and wash and tune carb. But my carb seem gd leh, rpm needle smooth and never vibrate when idle. :help:

when tire botah, the surface area of the rubber with the road wil be more and thus more friction.

more friction = slower speed + more fuel need to push abit harder + higher fuel comsumption

 

correct me if im wrong

[skateboy]

vtec sound shd b like a high pitched sound rite? like plane turbines like that...

 

no wonder can fly low...

 

anyway, had serviced, feel lighter n will monitor the FC...

 

the carb damn dirty... mech scold sia... so pai sey...

[lindavw]

I think the EO plays a big part... my own thinking nia only ok...

20w50 seems that gives me the best FC.

Anyone here noes what brand n model of EO got ratings of 10w50... i think this one is beta cos it is much thinner than 20w50 but still holding the ratings of 50 behind~ im looking for 10w50 to try.

Try le then can give u all feedback ma~ heehee

[AmmoTyr]

Originally posted by skateboy@Nov 27 2005, 10:55 PM

so actually travelling at 100km/h at 6500rpm is ok??

My vect1 is abt there or lesser ... so i think yours okay ...

[skateboy]

how do u guys get the FC of 20km/l to 22km/l??

 

still unable to attain the kind of FC leh...

 

 

anyway, had noticed that dry chain oso contribute in the FC...

now 100km/h is 6300rpm like that compared to 6500rpm...

 

had sprayed plenty of chain lube on the chain...

[stsoh]

Originally posted by lindavw@Dec 1 2005, 05:03 AM

I think the EO plays a big part... my own thinking nia only ok...

20w50 seems that gives me the best FC.

Anyone here noes what brand n model of EO got ratings of 10w50... i think this one is beta cos it is much thinner than 20w50 but still holding the ratings of 50 behind~ im looking for 10w50 to try.

Try le then can give u all feedback ma~ heehee

elf moto 4 xt tech full synthetic is 10w-50.....

rockoil has got 5w-50 grade...

 

anyway grade 50 viscosity is still 50 at operating temp....

 

first digits 'W' is winter....indicates oil still flow at freezing temp b4 solidify.

for example:

20w = 0 deg.

15w = -10 deg.

5w = -20 deg.

 

second digits 40, 50 n very rare u find 60, viscosity at operating temp.

singapore climate doesn't fall below 24 deg, so even 20w won't affect anything.

[AhMoNk]

went jb to top up.

my meter shows 360km. but the funnny thig is i haven't open reserve yet.. Could it be spoil ?

 

den i pump to full.. only 14.68 litres..

 

so does that mean that i still have 3 litres inside before pump ?

which means my one litre can travel 24km ?

 

I think like dat count.. aga aga 18litres = 432km ?

[HokAgE]

Originally posted by lindavw@Nov 7 2005, 12:44 PM

my ver s ever clock 29km/l...436km then reserve.. think sth to do wif plug leh...

now 27km/l. now using denso normal plug

may i ask,for verS how many litre you can pump full tank??

[ekin101]

I notice size of spocket plays a part on the max distance travelled.

 

Just changed my spocket to T45 original honda and my milleage droped by 30km.

Not sure the last one size but it's from HKL.

[LoxXxA]

Mine 100km/h at 6000rpm. Spocket size f15, r44. Ok right?

[lindavw]

if very dry can pump to 17.8 litres. i pump b4 17.8 max. think my frenz have tried b4 over 18 litres lor hahaha but is until ur bike cannot move then u push to the pump station la hahaha.

 

20W50 or XXw50 do make a diff to me .... like i said is the thickness n viscosity....

now im using 10w50 if any change in FC will inform u all again~

[fooz]

whr did u get ur 10w50 ? n hw much?

[skateboy]

Originally posted by lindavw@Dec 23 2005, 05:50 PM

if very dry can pump to 17.8 litres. i pump b4 17.8 max. think my frenz have tried b4 over 18 litres lor hahaha but is until ur bike cannot move then u push to the pump station la hahaha.

 

20W50 or XXw50 do make a diff to me .... like i said is the thickness n viscosity....

now im using 10w50 if any change in FC will inform u all again~

run dry? not good 4 the engine leh...

 

so currently wat oil do u recommand?

 

i'm using 10W50 on my vtec...

[skateboy]

Originally posted by LoxXxA@Dec 23 2005, 09:18 AM

Mine 100km/h at 6000rpm. Spocket size f15, r44. Ok right?

100km/h at 6000 rpm is normal range.

 

front sprocket nvr change b4 so i dunno.

 

rear sprocket for vtec got 44T n 45T. all vtec the same.

 

ver S got 42T n 45T. PB1 n ver R i think same as ver S.

 

that is wat i asked from the shop.

[draught]

Originally posted by lindavw@Dec 23 2005, 05:50 PM

if very dry can pump to 17.8 litres. i pump b4 17.8 max. think my frenz have tried b4 over 18 litres lor hahaha but is until ur bike cannot move then u push to the pump station la hahaha.

 

20W50 or XXw50 do make a diff to me .... like i said is the thickness n viscosity....

now im using 10w50 if any change in FC will inform u all again~

I ever heard can pump 19L, though tank capacity is only 18L. Must do alot of shaking. I guess its cos of shape of tank, which may result in some air space in tank.. So by shaking, may forace the air out for more space for petrol.

[HokAgE]

Hi all,juz wanna share this wit u guys...

 

 

Which SAE rating is the best ?

A: SAE 0W-60 but it is not available, yet !

Theoretically the best possible SAE Viscosity rating is 0W-60, but only small experimental quantities of such lubricants were ever produced. The NASA SynLube™ is rated SAE 0W-60, but it sells for $90.00 per Liter, therefore it is not economical or practical for average automotive use.

 

Below is the list of SAE Viscosity Ratings in order of preference from Best to Worst.

 

The Best Possible-

:SAE 0W-60 (Very Expensive)

 

The Best Available-

:SAE 5W-50 (Possible only with Fully Synthetic Motor Oil)

 

2nd Best-

:SAE 5W-40 for Colder Climates (Synthetic or Blend)

:SAE 10W-50 for Warmer Climates (Synthetic or Blend)

 

3rd Best-

:SAE 5W-30 for Colder Climates

:SAE 10W-40 for Normal Climates

:SAE 20W-50 for Hot Climates**

 

Average-

:SAE 10W-30

:SAE 15W-40 for Heavy Duty Diesel Applications

 

Acceptable-

:SAE 30 for Normal Climates, but not in Winter

:SAE 40 for Warmer Climates, but not in Winter

:SAE 50 for Hot Climates, but not in Winter

:SAE 5W-20 for sub-zero temperatures, Winter use only**