Go Back   Team-BHP > Buckle Up > Travelogues > Route / Travel Queries


Closed Thread
 
Thread Tools Search this Thread
Old 12th January 2010, 01:32   #271
BHPian
 
Glass's Avatar
 
Join Date: May 2008
Location: MegaBHPian* at Hyderabad
Posts: 252
Thanked: 12 Times
Default

Quote:
Originally Posted by shramik View Post
Use nitrogen instead of air to fill tyres. Nitrogen does not expand with heat being inert. The tyres remain cool to the touch even after a scorching fast drive !
Not sure how true that is. Inert gases don't expand?!
Glass is offline  
Old 12th January 2010, 08:37   #272
Newbie
 
Join Date: Dec 2009
Location: Bangalore
Posts: 23
Thanked: 4 Times
Default

Quote:
Originally Posted by shramik View Post
Use nitrogen instead of air to fill tyres. Nitrogen does not expand with heat being inert. The tyres remain cool to the touch even after a scorching fast drive !
Inert gases don't react chemically with other elements. They will still expand and contract as per the Combined Gas Law of P*V/T = k.

On the advantages of filling nitrogen you might find this article useful. There is no compelling evidence to show that nitrogen helps. Nitrogen proponents believe that the inside of the tyres will not oxidize and hence will last longer.

Do Nitrogen-Filled Tires Enhance Fuel-Efficiency?: Scientific American

Srivathsa
s_yajaman is offline  
Old 12th January 2010, 08:52   #273
BHPian
 
Join Date: Feb 2008
Location: bangalore
Posts: 181
Thanked: 5 Times
Default

Quote:
Originally Posted by shramik View Post
Use nitrogen instead of air to fill tyres. Nitrogen does not expand with heat being inert. The tyres remain cool to the touch even after a scorching fast drive !
Can you confirm you have checked your tyre pressure at cold start and between a drive and found the pressure equal with nitrogen?
Till then i would consider the practice of filling air mid-way very dangerous.
pkumar is offline  
Old 13th January 2010, 00:12   #274
Distinguished - BHPian
 
Thad E Ginathom's Avatar
 
Join Date: Jun 2007
Location: Chennai
Posts: 7,847
Thanked: 7,246 Times
Default

Quote:
Nitrogen does not expand with heat being inert.
Sorry, that is wrong too.

Everything expands as it gets hotter, and that includes all gases.
Thad E Ginathom is offline  
Old 13th January 2010, 13:06   #275
Newbie
 
Join Date: Dec 2009
Location: Bangalore
Posts: 23
Thanked: 4 Times
Default

Quote:
Originally Posted by Thad E Ginathom View Post
Sorry, that is wrong too.

Everything expands as it gets hotter, and that includes all gases.
That is not entirely correct as well. Most do. There are a few exceptions. Water from 0C to 4C contracts. Cubic Zirconium Tungstate contracts as it is heated. This is called Negative Thermal Expansion.
Sorry once again to take this thread off topic.

Srivathsa
s_yajaman is offline  
Old 13th January 2010, 14:27   #276
Distinguished - BHPian
 
Thad E Ginathom's Avatar
 
Join Date: Jun 2007
Location: Chennai
Posts: 7,847
Thanked: 7,246 Times
Default

Correction accepted

I thought it was ice expanded as it got colder from 0 to -4, hence bursting pipes, rather than water contracting from 0 to +4. I know water is an anomaly, though.
Thad E Ginathom is offline  
Old 10th May 2010, 10:24   #277
BHPian
 
Blr_RK's Avatar
 
Join Date: Aug 2008
Location: Bangalore
Posts: 69
Thanked: 38 Times
Default High Beam on Highways - is it wrong?

Hi,

Last night, while on my way back to Bangalore from Mysore in my Santro, my headlights were in high beam (OEM headlights). The driver of the car in front of me was gesticulating at me to change the headlights to low beam. I was not honking or making any moves to overtake him. From his animated actions, I felt, he was annoyed. I was thinking, since it being a highway, the high beam is required.

From his actions, I got the feeling that i was doing some wrong by driving on a high way in highbeam. I normally do so, for better visibility, but only on highways. In the city, I am always on low beam.

Just wanted to ask you guys your opinion, on whether what I was doing was correct or not?

Regards

Last edited by Jaggu : 10th May 2010 at 11:24. Reason: Please use Search and continue in an existing thread, Thanks
Blr_RK is offline  
Old 10th May 2010, 12:13   #278
Senior - BHPian
 
mooza's Avatar
 
Join Date: Oct 2009
Location: Bangalore
Posts: 1,056
Thanked: 245 Times
Default

Quote:
Originally Posted by Blr_RK View Post
From his actions, I got the feeling that i was doing some wrong by driving on a high way in highbeam. I normally do so, for better visibility, but only on highways. In the city, I am always on low beam.
Just wanted to ask you guys your opinion, on whether what I was doing was correct or not?
Relax RK, you were doing the right thing, in my opinion, by using the high beam.
Maybe you were driving too close ? I hope he wasn't thinking that you were tailgating him.

Anyway, if you still have doubts about your highbeam focussing angle, you could get this checked / adjusted at your service centre.

Regards, Mooza

Last edited by mooza : 10th May 2010 at 12:14.
mooza is offline  
Old 10th May 2010, 13:40   #279
Team-BHP Support
 
mobike008's Avatar
 
Join Date: Sep 2006
Location: Hyderabad
Posts: 10,746
Thanked: 7,964 Times
Default

Quote:
Originally Posted by Blr_RK View Post
Hi,

Last night, while on my way back to Bangalore from Mysore in my Santro, my headlights were in high beam (OEM headlights). The driver of the car in front of me was gesticulating at me to change the headlights to low beam. I was not honking or making any moves to overtake him. From his animated actions, I felt, he was annoyed. I was thinking, since it being a highway, the high beam is required.

From his actions, I got the feeling that i was doing some wrong by driving on a high way in highbeam. I normally do so, for better visibility, but only on highways. In the city, I am always on low beam.

Just wanted to ask you guys your opinion, on whether what I was doing was correct or not?

Regards
While on the highway you did absolutely right of being on high-beam. However, i am assuming the reason the opposite driver did that gesture is because you may not have dipped to low beam for a second before moving back to high-beam so he can see you properly and also his path.

Its always a good habit to dip your lights for vehicles coming from opposite side to see you properly even if they dont dip, sometimes its good for us if not for both
mobike008 is offline  
Old 10th May 2010, 15:11   #280
Distinguished - BHPian
 
sudev's Avatar
 
Join Date: Jan 2008
Location: Gurgaon
Posts: 3,512
Thanked: 2,385 Times
Default

Quote:
Originally Posted by Blr_RK View Post
...my headlights were in high beam (OEM headlights). The driver of the car in front of me was gesticulating at me to change the headlights to low beam. I was not honking or making any moves to overtake him. From his animated actions, I felt, he was annoyed. I was thinking, since it being a highway, the high beam is required.....
Contrary to advise by some one else before I think if you were within reasonable distance behind another car then you should be using dip beams. Use high beams only if there is no other traffic. Dip as much as possible when on coming traffic is there.

Okay let me put it another way. When you were following another car what were you trying to illuminate with your high beams? The rear end of that car? If you were to drive in low beams behind another car you can see his tail lights and stop lights to do anticipatory driving. And you can see beyond him object illuminated by his beam.

By driving with high beams you do distract the driver in front through his outside mirrors (and it is bad driving to fold them even at night).

My take: Try use dip beams as much as possible. I have already posted on this thread earlier too giving the same advice.
sudev is offline  
Old 10th May 2010, 15:17   #281
Distinguished - BHPian
 
sudev's Avatar
 
Join Date: Jan 2008
Location: Gurgaon
Posts: 3,512
Thanked: 2,385 Times
Default

Quote:
Originally Posted by mobike008 View Post
While on the highway you did absolutely right of being on high-beam. However, i am assuming the reason the opposite driver did that gesture is because you may not have dipped to low beam for a second before moving back to high-beam so he can see you properly and also his path.
One:
Please read the OP's post again. He was following a car. This is not about oncoming vehicle.

Two: Your advise of keeping high beams to opposing traffic!! Oxymoron. See may earlier posts. It is safer to slow down and keep your beams dipped to let oncoming driver "see" his way. Even if he does not dip. You can flash high few times to remind him to dip but blinding him in to dipping is no solution and is dangerous driving technique to boot.

MODS sorry for replying multiple times within short span of time but I felt this deserved to be kept separate
sudev is offline  
Old 10th May 2010, 15:22   #282
Senior - BHPian
 
Join Date: Dec 2007
Location: Dubai
Posts: 3,860
Thanked: 128 Times
Default

Quote:
Originally Posted by sudev View Post
...By driving with high beams you do distract the driver in front through his outside mirrors (and it is bad driving to fold them even at night)...


On the highway, when following a vehicle, either waiting for him/her to give way or just going as a convey, it is best to be on low beam.

Since you have a convoy leader, you will be able know before hand any road surprises by studying his reaction. And you are also doing something good by not blinding him (not all cars sold in India have an anti-glare rear view mirror).

This also give you an option to flash the light if you intend to over take him. Driving with full beam right behind someone is similar to driving with horn's blaring (something like out internet lingo of using capitals to shouts at someone).

But if you are having a clear road, with no sign of traffic from the opposite side, then high beam it is.

Quote:
Originally Posted by sudev View Post
... It is safer to slow down and keep your beams dipped to let oncoming driver "see" his way. Even if he does not dip. You can flash high few times to remind him to dip but blinding him in to dipping is no solution and is dangerous driving technique to boot...
Dipping, even once, will help the oncoming traffic to see what is in front of him. This hold true for vehicles such as bullock carts and night time cyclist, who are all but invisible is everyone drives only on high beam. A single flick, will be a saver at such times. Best is to dip till traffic passes.

Last edited by HappyWheels : 10th May 2010 at 15:26.
HappyWheels is online now  
Old 10th May 2010, 15:43   #283
BHPian
 
pachchu's Avatar
 
Join Date: Aug 2007
Location: Bangalore
Posts: 139
Thanked: 37 Times
Default

sudev, well said.

RK, when you are on high-beam following another car, what you are doing is, flooding the front car's rear-view-mirror with light and blinding him. this happens bcos of the angle of the high-beam headlights. it is extremely irritating to have a high-beam car behind you or pass you.

the right practice is to keep a low beam when you are following other traffic or if there is traffic in opposite direction. use high-beam only when you don't have any vehicle in front of you or in the opposite direction. whenever you see a vehicle coming from opposite direction, lower your headlights until that vehicle has passed you.

Quote:
Originally Posted by Blr_RK View Post
Hi,

Last night, while on my way back to Bangalore from Mysore in my Santro, my headlights were in high beam (OEM headlights). The driver of the car in front of me was gesticulating at me to change the headlights to low beam. I was not honking or making any moves to overtake him. From his animated actions, I felt, he was annoyed. I was thinking, since it being a highway, the high beam is required.

From his actions, I got the feeling that i was doing some wrong by driving on a high way in highbeam. I normally do so, for better visibility, but only on highways. In the city, I am always on low beam.

Just wanted to ask you guys your opinion, on whether what I was doing was correct or not?

Regards
pachchu is offline  
Old 10th May 2010, 15:50   #284
Senior - BHPian
 
vnabhi's Avatar
 
Join Date: May 2007
Location: DC -> DC
Posts: 5,271
Thanked: 1,236 Times
Default

Quote:
Originally Posted by Blr_RK View Post
Hi,

Last night, while on my way back to Bangalore from Mysore in my Santro, my headlights were in high beam (OEM headlights). The driver of the car in front of me was gesticulating at me to change the headlights to low beam. I was not honking or making any moves to overtake him. From his animated actions, I felt, he was annoyed. I was thinking, since it being a highway, the high beam is required.

From his actions, I got the feeling that i was doing some wrong by driving on a high way in highbeam. I normally do so, for better visibility, but only on highways. In the city, I am always on low beam.

Just wanted to ask you guys your opinion, on whether what I was doing was correct or not?

Regards
I guess you were too close to him, giving him an impression that you were tailgating him. Switching to lower beam would have been better in such circumstances.

But if the gap between was more, then high beam is the safest option, as you never know when a buffalo or a cyclist will swerve into your path all of a sudden from the dark sides of the road that is not illuminated by your low beam.

As regards oncoming traffic, I always dip till the opposite guy passes, but at one time nearly crashed into a buffalo crossing the road as it was just not visible because I'd dipped my lights!!
vnabhi is offline  
Old 10th May 2010, 15:59   #285
Team-BHP Support
 
mobike008's Avatar
 
Join Date: Sep 2006
Location: Hyderabad
Posts: 10,746
Thanked: 7,964 Times
Default

Quote:
Originally Posted by sudev View Post
One:
Please read the OP's post again. He was following a car. This is not about oncoming vehicle.
My bad. I thought it was oncoming vehicle. And, i agree with you, if there is no traffic, high beam should be used and if no traffic, then we should move to "Low Beam" so as not to inconvenience the vehicle in front of you.

Having said that, 99% of drivers on highway dont do that.

Quote:
Originally Posted by sudev View Post
Two: Your advise of keeping high beams to opposing traffic!! Oxymoron. See may earlier posts. It is safer to slow down and keep your beams dipped to let oncoming driver "see" his way. Even if he does not dip. You can flash high few times to remind him to dip but blinding him in to dipping is no solution and is dangerous driving technique to boot.
When your on a highway, it is always better to drive in high beam ( not forgetting to dip though) even if an oncoming vehicle is coming due to the following :-

1) If the oncoming vehicle does not dip his beams even after you doing it. Atleast you can see the road to the left which is "very important". The shoulder or the road edge on left cannot be seen in low beams

2. Flashing a few times for vehicles who do not respond is fine for one-odd vehicle, what if there is continous traffic coming from opposite? You will break your flashing lever

3. I did mention to dip when an oncoming vehicle is coming even if that vehicle does not respond.

Why, i know of a tbhpian who is extremely satisfied of driving long distances in night on highways using " Completely" low beam.

In short, everyone has a different driving style, speed usage so this is an experimentation to be done during a few night drives and settle down to what works best for you. And, what may work well for one may not work for other.
mobike008 is offline  
Closed Thread


Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Driving Guide : Rules, Tips, Etiquette & Common Mistakes To Avoid longhorn Street Experiences 309 25th September 2017 17:08
Nepal: Driving through the East West Highway (Mahendra Highway) Samratrek Travelogues 3 24th July 2016 12:26
Why can't Educated People teach their Driver's Driving Etiquette? sarmarishi Street Experiences 26 12th May 2011 14:33
Driving Etiquette in different countries appuchan The International Automotive Scene 5 17th May 2007 20:26


All times are GMT +5.5. The time now is 11:05.

Copyright 2000 - 2017, Team-BHP.com
Proudly powered by E2E Networks