Singapore Nissan Owners Group
Nissan Car Lounge - Almera, Juke, Latio, Qashqai, Sylphy, Teana Owners => Latio => Topic started by: kenmaine1008 on April 20, 2009, 01:16:16 PM
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hi all... newbie here...
just want to ask if i pump 230 for both front and rear is it acceptable??
under the tire placard... it states 230 for front.. and 210 for back...
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When I in stock, previously I pumped 250 front and 230 back.
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When I in stock, previously I pumped 250 front and 230 back.
same pressure I pump. Find it the most optimal for stock tyres for fuel Economy
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same pressure I pump. Find it the most optimal for stock tyres for fuel Economy
wah.. so high ah... means the front must be always higher than the rear?
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Front higher because got engine load + Driver, thus more pressurce on the both front tires.
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hi all... newbie here...
just want to ask if i pump 230 for both front and rear is it acceptable??
under the tire placard... it states 230 for front.. and 210 for back...
The pressure quoted is when the tyres are cold. To cater for factors of expansion and contraction, we should pump slightly more. Mine is 250 front and 230 back.
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wah..okie... the other time when i collected the car.. the se pump 220 only for all...
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hmm.. also any idea wat is the max we can pump for front and rear??
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same pressure I pump. Find it the most optimal for stock tyres for fuel Economy
Yea. :thumbsup:
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hmm.. also any idea wat is the max we can pump for front and rear??
You will know when you pump until your tyre burst lor....haha.... :devil2: :devil2: :devil2:
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The front tire i ever pump until 280 and back tire 260, when the tire is hot. Sounds a bit scary yah?
And i achieve 15km/litre
Then i drop to 265 for front and 245 for back, pump when tire is hot, also 15km/litre.
I think i will stick with these pressure. My tires and rims are stock.
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The front tire i ever pump until 280 and back tire 260, when the tire is hot. Sounds a bit scary yah?
And i achieve 15km/litre
Then i drop to 265 for front and 245 for back, pump when tire is hot, also 15km/litre.
I think i will stick with these pressure. My tires and rims are stock.
wah.. u are so hardcore my fren...
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different station pump different calibration. So if u go to Caltex station pump 230, then drive to Esso, then u try u be shock the reading is 250. Then U drive to shell wah the reading is 210.
So stick to your regular pump.
SPC pump the most lao ya. Esso and Caltex quite ok, but caltex must see location.
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The front tire i ever pump until 280 and back tire 260, when the tire is hot. Sounds a bit scary yah?
And i achieve 15km/litre
Then i drop to 265 for front and 245 for back, pump when tire is hot, also 15km/litre.
I think i will stick with these pressure. My tires and rims are stock.
If you pumped when your tyre is hot, should be o.k, but if your tyre is cold and you pumped 280, then is scary. :bleh:
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when cold.. i pump 270 front and 280..
feel quite good....
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don't you guys feel the ride is bumpy if tire pressure at 270? i once tried 240 front and 220 back, my wife complians too bumpy for her to read the pda screen. she will feel headache after a while reading the pda screen.
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when cold.. i pump 270 front and 280..
feel quite good....
Bro,
You pumped 280 when cold, it may reach more than 300kpa when hot. Becareful, take it as a sound advise. You can see why some encountered burst tyres on NSHW. :zipped:
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hmm.. also any idea wat is the max we can pump for front and rear??
The max pressure is indicated on the tyre. Think for our stock, it is 250 kpa. Be careful for bros pumping much higher than this.
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different station pump different calibration. So if u go to Caltex station pump 230, then drive to Esso, then u try u be shock the reading is 250. Then U drive to shell wah the reading is 210.
So stick to your regular pump.
SPC pump the most lao ya. Esso and Caltex quite ok, but caltex must see location.
I kenna one time before when i pumped at one of the stations. Can't seem to hear the buzzer that indicated the intended pressureg has been reached. Go to next door station, discovered that instead of pumping more air, the previous pump drew air from the tyres. The pressure has fallen to below 150 KPa.
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Bro,
You pumped 280 when cold, it may reach more than 300kpa when hot. Becareful, take it as a sound advise. You can see why some encountered burst tyres on NSHW. :zipped:
eh.. sorry.. wat do u guys meant by hot and cold?
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Bro,
You pumped 280 when cold, it may reach more than 300kpa when hot. Becareful, take it as a sound advise. You can see why some encountered burst tyres on NSHW. :zipped:
250KPa is already more than enough on the extreme end.
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had been on 280 kPa (hot) for the last month or so
maximum stated on tyre sidewall is 300 kPa (cold)
FC = 13+ kpl
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had been on 280 kPa (hot) for the last month or so
maximum stated on tyre sidewall is 300 kPa (cold)
FC = 13+ kpl
That is just a guideline, bearing in mind that there are variations in different pumps.
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maximum pressure stated on the tyre sidewall is stamped by the tyre manufacturer
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250KPa is already more than enough on the extreme end.
This is based on your Clarence' theory ?
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eh.. sorry.. wat do u guys meant by hot and cold?
'Hot' means you pump when the tyre is hot eg. after travelling for some time.
'Cold' means you pump when the tyre is cold eg. car parked at pumping station for few hours or overnight or you live next door to a petrol kiosk and go pump first thing in the morning.
Note: Pressure in 'hot' tyre is higher than that in 'cold' tyre, depending how 'hot' the tyre is.
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'Hot' means you pump when the tyre is hot eg. after travelling for some time.
'Cold' means you pump when the tyre is cold eg. car parked at pumping station for few hours or overnight or you live next door to a petrol kiosk and go pump first thing in the morning.
Note: Pressure in 'hot' tyre is higher than that in 'cold' tyre, depending how 'hot' the tyre is.
oic.. means pumping when its hot is more accurate?
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oic.. means pumping when its hot is more accurate?
Nope, recommend to pump your tyres when cold. You can travel not more than 5km to your petrol station to pump air.
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how often do we need to pump our tyres if its nitrogen filled?
some say once a mth, some say once in 2 mths & some say the pressure would never drop so there is no need to pump... wonder which to believe?
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Pressure will never drop is a lie, it'll definitely drop. Maybe you can pump after one month bah. Anyway our air is already 78% nitrogen, so it won't make much of a difference anyway.
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Nope, recommend to pump your tyres when cold. You can travel not more than 5km to your petrol station to pump air.
oh.. okie thanks!~ ;D
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how often do we need to pump our tyres if its nitrogen filled?
some say once a mth, some say once in 2 mths & some say the pressure would never drop so there is no need to pump... wonder which to believe?
I changed my tyres 2 months back and the shop filled it with N2, told me no need to charge for 3 months and they will do it for free. On my previous tyres, I would religiously check my tyre pressures every weekend but for the new set with N2, I checked it after a month.
My findings were that the pressures dropped significantly and I should still check and charge my tyres every week.
Just for sharing....
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different station pump different calibration. So if u go to Caltex station pump 230, then drive to Esso, then u try u be shock the reading is 250. Then U drive to shell wah the reading is 210.
So stick to your regular pump.
SPC pump the most lao ya. Esso and Caltex quite ok, but caltex must see location.
I suggest that car owners buy a tire pressure gauge and keep in the car.
They are easily available, and are not expensive. (in fact, some people find the cheap non-digital ones better then the relatively more expensive, digital ones)
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This is based on your Clarence' theory ?
I don't understand what you are trying to imply on this. :confused1:
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I suggest that car owners buy a tire pressure gauge and keep in the car.
They are easily available, and are not expensive. (in fact, some people find the cheap non-digital ones better then the relatively more expensive, digital ones)
Yup, i heard the exact same thing from a few friends - that the cheap gauges seem to be more accurate compared to the digital ones!
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I don't understand what you are trying to imply on this. :confused1:
Do you really understand your tyre spec again if you are driving. You mentioned 250kpa is already at the extreme end ? On hot or cold ? Some bros here already mentioned they pumped as high as 280kpa and max for toyo j50 is 300kpa on cold. So I ask is this your Clarence' theory ?
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hi all, i'm very comfortable with the 270/250 kpa now with fc ~14km/l. It has improved from my previous FC ard 12+km/l. At a start, u will feel bumpy but after awhile, it's OK then :smile:
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hi all, i'm very comfortable with the 270/250 kpa now with fc ~14km/l. It has improved from my previous FC ard 12+km/l. At a start, u will feel bumpy but after awhile, it's OK then :smile:
270 for front and 250 for rear? does it matter if one is using stock or different types of tyres?
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Do you really understand your tyre spec again if you are driving. You mentioned 250kpa is already at the extreme end ? On hot or cold ? Some bros here already mentioned they pumped as high as 280kpa and max for toyo j50 is 300kpa on cold. So I ask is this your Clarence' theory ?
I was referring to 250KPa when cold.
Pumping 280 to 300 KPa on a cold tyre could seriously compromise safety as the contact with the road is minised.
But to each his own. Everyone has their rights to pump 300KPa. It sure does help in saving some fuel.
NEVER over my dead body would I pump 280 to 300 KPa. One's life is worth more than that few dollars in savings for a full tank of petrol.
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Clarence bro and Jazz bro....what's with the agression and unfriendliness?? There is no need to get all agressive over opinions, suggestions and advises given here....i think all other forumers here are not idiots....they all know that all opinions, suggestions and advises given here are for consideration only......no one will take it as a hard and fast rule to follow....so wat if u win in the shutting down the other forumer's from expressing his opinions and advises?? Does this mean tat from now on u r GOD and every other forumer from henceforth will abide by your advises and suggestions religiously?
Besides, we are all none the wiser...if we are so good....why are we not in some big company in some R&D lab doing tyre research? We are all only sharing our experience and opinions....
Best of all....you may think some are compromising safety by trying to save more $$$.....but those who did it....obviously after consideration have thought otherwise....and if some thing really happen, tough wood, he had himself only to blame.....to each his own.....we are all free to express our opinions and experience as we like....but no personal attacks please....this is one of my favourite forum....dun make it my most unfavourite one.....thanks...
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Clarence bro and Jazz bro....what's with the agression and unfriendliness?? There is no need to get all agressive over opinions, suggestions and advises given here....i think all other forumers here are not idiots....they all know that all opinions, suggestions and advises given here are for consideration only......no one will take it as a hard and fast rule to follow....so wat if u win in the shutting down the other forumer's from expressing his opinions and advises?? Does this mean tat from now on u r GOD and every other forumer from henceforth will abide by your advises and suggestions religiously?
Besides, we are all none the wiser...if we are so good....why are we not in some big company in some R&D lab doing tyre research? We are all only sharing our experience and opinions....
Best of all....you may think some are compromising safety by trying to save more $$$.....but those who did it....obviously after consideration have thought otherwise....and if some thing really happen, tough wood, he had himself only to blame.....to each his own.....we are all free to express our opinions and experience as we like....but no personal attacks please....this is one of my favourite forum....dun make it my most unfavourite one.....thanks...
yeah.. totally agree!!! let's gain more knowledge and opinions ;D
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270 for front and 250 for rear? does it matter if one is using stock or different types of tyres?
yes, u r rite. Hv tried on both stock as well as new tyres now, but will not pump too high shd the tyres' thread already worn up and abt time to change.
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yeah.. totally agree!!! let's gain more knowledge and opinions ;D
ya lor! working already so pressurize, hence shd make this forum more friendly then. :thumbsup:
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come for the monthly meet-ups and chill ....................
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come for the monthly meet-ups and chill ....................
So unfriendly here....dun dare to show face.... :bleh: :bleh:
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I suggest that car owners buy a tire pressure gauge and keep in the car.
They are easily available, and are not expensive. (in fact, some people find the cheap non-digital ones better then the relatively more expensive, digital ones)
any reliable brand? get from where?...
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dont buy those pen type, get those with round shape with needle readling type. Autobac Ubi sell at ~$13.
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Stock, Front 300, Rear 250. Bumpy. But just pretend that my tyres are low profiles.
I inflate my spare tyre with a bicycle pump to 300kPa. It's more convenient and doesn't take very much effort, plus it has a built in pressure gauge that happens to be accurate.
Higher pressures mean less sidewall deformation and therefore less heat generated while running at highway speeds.
I don't really feel any loss in traction due to a reduction in contact patch size. But then, I drive more for economy than to pull G's. Tyre wear is very even across the tread. Hopefully, they'll be good for another year. Aim is to reach 10yrs on 3 sets of tyres.
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noob here with a quick question. is there a need to change tyre pressure if changing rim size and tyre size? if yes then by how much? thanks everyone!
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for those looking for great information go check out http://www.carbibles.com/tyre_bible_pg2.html (http://www.carbibles.com/tyre_bible_pg2.html). of course this may be nothing new already but just a sharing on this thread since there's no mention of it.
*interesting point for me was the 10% Theory that Chris is now applying to his own tyres
"What's the "correct" tyre pressure?
How long is a piece of string?
Seriously though, you'll be more likely to get a sensible answer to the length of a piece of string than you will to the question of tyres pressures. Lets just say a good starting point is the pressure indicated in the owner's manual, or the sticker inside the driver's side door pillar. I say 'starting point' because on every car I've owned, I've ended up deviating from those figures for one reason or another. On my Subaru Impreza, as outlined above, I got much better gas mileage and no difference in tyre wear by increasing my pressures to 40psi. On my Honda Element, I cured the vague handling and outer-tyre-edge wear by increasing the pressures from the manufacturer-recommended 32/34psi front and rear respectively, to 37psi all round. On my Audi Coupe I cured some squirrelly braking problems by increasing the pressure at the front from 32psi to 36psi. On my really old VW Golf, I cured bad fuel economy and vague steering by increasing the pressures all-round to 33psi.
So what can you, dear reader, learn from my anecdotes? Not much really. It's pub-science. Ask ten Subaru Impreza owners what they run their tyres at and you'll get ten different answers. It depends on how they drive, what size wheels they have, what type of tyres they have, the required comfort vs. handling levels and so on and so forth. That's why I said the sticker in the door pillar is a good starting point. It's really up to you to search the internet and ask around for information specific to your car.
The Max. Pressure -10% theory.
Every tyre has a maximum inflation pressure stamped on the side somewhere. This is the maximum pressure the tyre can safely achieve under load. It is not the pressure you should inflate them to.
Having said this, I've given up using the door pillar sticker as my starting point and instead use the max.pressure-10% theory. According to the wags on many internet forums you can get the best performance by inflating them to 10% less than their recommended maximum pressure (the tyres, not the wags - they already haves inflated egos). It's a vague rule of thumb, and given that every car is different in weight and handling, it's a bit of a sledgehammer approach. But from my experience it does seem to provide a better starting point for adjusting tyre pressures. So to go back to my Subaru Impreza example, the maximum pressure on my Yokohama tyres was 44psi. 10% of that is 4.4, so 44-4.4=39.6psi which is about where I ended up. On my Element, the maximum pressure is 40psi so the 10% rule started me out at 36psi. I added one more to see what happened and it got better. Going up to 38psi and it definitely went off the boil, so for my vehicle and my driving style, 37psi on the Element was the sweet spot.
The other alternative - don't mess with your pressures at all
So - raising the pressure can extend a tyre's life because there is now less rubber contact with the road, the tyre is stiffer and therefore heats up less so lasts longer and less friction with the road gives greater MPG. Also, less sidewall flex will give a more positive feeling of steering accuracy but it can result in less ultimate grip and sudden unexpected loss of grip at the limit of adhesion. Raising or lowering tyre pressures too much either side of manufacturers recommendations could be at the expense of a less safe, more uncomfortable vehicle. So should we take all vehicle manufacturers recommendations as being absolutely correct? Remember that thousands of hours go into the development and testing of a car. If you've dicked around with your tyre pressures and still don't think it's right, go back to the door pillar sticker and try that again - you could be surprised. "
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dont buy those pen type, get those with round shape with needle readling type. Autobac Ubi sell at ~$13.
Daiso sell $2 nia
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Daiso sell $2 nia
retail price or "friend friend" price? have pic? If $2 I want to buy a few as gift loh.
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retail price or "friend friend" price? have pic? If $2 I want to buy a few as gift loh.
eh i think u living in some cave or something,....Daiso can sell fren price ah....? :bleh:
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eh i think u living in some cave or something,....Daiso can sell fren price ah....? :bleh:
daiso everything oso $2 ;D