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View Poll Results: Do you feel that a car feels more responsive while driving at night?
Yes, the car definitely feels quicker at night 27 90.00%
No dude, you are imagining things. 3 10.00%
Voters: 30. You may not vote on this poll

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Old 4th June 2011, 01:46   #91
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Default Re: Monsoons improve Mileage....

Only one reason: Monsoons = Denser air
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Old 4th June 2011, 01:51   #92
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Default Re: Monsoons improve Mileage....

In USA i get lower mileage in winter.. weird its quite opposite there..
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Old 4th June 2011, 06:29   #93
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Default Re: Monsoons improve Mileage....

Quote:
Originally Posted by dhanushs View Post
Only one reason: Monsoons = Denser air
Yes that correct. This will be 'sensed' by the ECU thereby altering the combustion mixture leading on to better efficiency.

The need for less amount of AC and (in my experience) less traffic on the whole(due to lac of two wheelers) on the roads contribute to a certain extend.
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Old 4th June 2011, 12:20   #94
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Default Re: Monsoons improve Mileage....

@clevermax

Lower rolling resistance due to water on roads.
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Old 21st November 2011, 14:32   #95
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Default re: Ah, winter time. Engines are feeling better due to cooler air!

The minimum temperature has reached around 14 degrees in NCR and I am already noticing change in engine operation in terms of mileage and smoothness. I am getting around 2 KMPL more mileage from all my cars and bikes and engines are revving more smoothly.
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Old 9th December 2011, 12:28   #96
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Default Re: Monsoons improve Mileage....

Quote:
Originally Posted by silverado View Post
@clevermax

Lower rolling resistance due to water on roads.
In fact rolling resistance increases with water (or anything else) on the road, as the tyres have to pump the water out.
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Old 9th December 2011, 12:35   #97
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Default re: Ah, winter time. Engines are feeling better due to cooler air!

Hardly. Here in Goa, there is not much of a difference in the temperatures between May and December. Hence for us folks, its all the same.

The only thing I have noticed is, yes, the engine does feel sharper at night that at noon. For these reasons I sometimes wish I stayed somewhere more inwards.. And happily hear my car gurgling with pleasure in the Winter.

Last edited by swarnava.m : 9th December 2011 at 12:36.
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Old 9th December 2011, 13:26   #98
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Default re: Ah, winter time. Engines are feeling better due to cooler air!

Yup, totally agree, especially for those of us with Turbodiesels. The car feels just as nice all day (instead of becoming sluggish in the afternoons)!
The only fly in the ointment is that the windows tend to fog up at night, and the AC feels too cold.
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Old 17th December 2011, 01:12   #99
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Default Re: Monsoons improve Mileage....

Quote:
Originally Posted by goandude View Post
In fact rolling resistance increases with water (or anything else) on the road, as the tyres have to pump the water out.
If thats the case why do we get better braking performance in Dry? More friction isnt it?

Grooves are designed to cut through water to avoid aquaplaning IMO.

A simple example of a wet vs Dry parking lot, doesnt a wet parking lot make steering the car easier?

I do not own power-steered cars and i can bet it does.
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Old 17th December 2011, 02:01   #100
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Default Re: Monsoons improve Mileage....

Quote:
Originally Posted by silverado View Post
If thats the case why do we get better braking performance in Dry? More friction isnt it?

Grooves are designed to cut through water to avoid aquaplaning IMO.

A simple example of a wet vs Dry parking lot, doesnt a wet parking lot make steering the car easier?

I do not own power-steered cars and i can bet it does.

Rolling resistance doesn't give better braking performance - sliding friction does. While usually they seem to be linked - that's not the case.

Grooves or not, water ill have to be replaced - that requires energy, hence friction. Water will also reduce the threshold of sliding friction - you can slip more easily - hence aquaplaning. That is also the reason your steering is lighter on a wet road.
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Old 17th December 2011, 02:20   #101
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Default Re: Monsoons improve Mileage....

Quote:
Originally Posted by silverado View Post
If thats the case...
Try driving in neutral into some stagnant water on the road. You will know. There will be sudden deceleration when the vehicle enters water.

P.S: Please maintain SAFE speeds/practices.
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Old 15th December 2012, 16:53   #102
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Default re: Ah, winter time. Engines are feeling better due to cooler air!

City's MID showing 14~15 KMPL since last one week. Winters are here and I can definitely see the increase in mileage yet again.
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Old 15th December 2012, 17:28   #103
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Default Re: Monsoons improve Mileage....

Quote:
Originally Posted by silverado View Post
@clevermax

Lower rolling resistance due to water on roads.
I am no expert but I feel that wet roads actually may increase the rolling resistance.

I would do a simple test - roll down something cylindrical from a fixed height ramp over a dry wooden surface, and then make the surface wet and try again, and check how far it has rolled before stopping. Obviously you get more distance on dry surface.

Going by your point, highest mileage can be achieved not on dry tarmac but on black ice... But we know mileage sucks on such surfaces.

Not denying that rolling friction is a factor for mileage. Rolling friction will be lesser when tire and tarmac makes contact through air than through a more viscous and denser medium like water. Obviously, more energy is needed (wasted) in order to push water out while tire tries to make contact with tarmac, than air - prove me wrong in this point.

Braking friction is another thing altogether, which is less on water and more on dry surface, which has no direct relation with mileage.

And, lower traction cannot increase mileage.

Quote:
Originally Posted by goandude View Post
In fact rolling resistance increases with water (or anything else) on the road, as the tyres have to pump the water out.
You just stated what I had to say, in a brief sentence.

Last edited by clevermax : 15th December 2012 at 17:50.
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Old 15th December 2012, 22:16   #104
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Default re: Ah, winter time. Engines are feeling better due to cooler air!

I feel that the engine sounds are low in winter when compared to the hotter months. Have anyone else felt this phenomena?

Will the denser air have any affect on the sound produced by the engine?

Anurag.
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Old 15th December 2012, 22:44   #105
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Default re: Ah, winter time. Engines are feeling better due to cooler air!

its the cold air intake my friends. its denser so its richer in O2 hence cleaner burning of fuel hence POWERRRR
so happy you and happy engine. And because you get more power you lift off the power faster which in turn results in better fuel mileage.
what do u guys think? could i be right?
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