Go Back   Team-BHP > Team-BHP > Team-BHP Advice > On owning a car

On owning a car Help articles related to owning a car

Reply
 
Thread Tools
Old 15th August 2007, 12:39   #121 (permalink)
BHPian
 
Join Date: May 2007
Location: Mumbai
Posts: 61
Default

Quote:
Originally Posted by mhafeez_13666 View Post
Is there a difference in FE for the following options?

1. A/C always on the Automatic climate control
2. A/C always on the Manual zone

Please don't kick me if this is a stupud question
What I know is that under climate control the compressor of the AC gets switched off just like in the case of window or split AC which means climate control actually maintains the temperature to a desired level. It is but obvious that climate control vehicle will give better Fuel efficiency than the manual one. ( untill and unless you keep putting on and off the manual AC at regular intervals)
saurabhkum is offline   Reply With Quote
Old 24th August 2007, 11:27   #122 (permalink)
JSB
Newbie
 
Join Date: Jul 2007
Location: Mumbai
Posts: 4
Default

Hey guys, need some gyan.
I drive in peak Mumbai traffic on weekdays and hence mostly drive in the first 3 gears. Now consider the following situation, which I am sure many of us would have experienced a lot. It’s bumper to bumper traffic, very slow moving and u need to stop-move-stop very frequently.

Which of the following styles is more fuel efficient and gentle on the engine:
1) U keep the car in gear and with the clutch pressed. This results in lesser gear shift but more usage of clutch. U end up riding the clutch for as much as 20-30 seconds.
2) U keep putting the car in neutral, even for a short duration (2-3 seconds) and hence remove the foot from the clutch. This results in much more frequent gear shift but much lesser usage of clutch.

A detailed technical explanation would be greatly appreciated. Also one more query:
3) Is it advisable to directly start the car in 2nd gear instead of 1st?

Thanks in advance!

Last edited by JSB : 24th August 2007 at 11:28.
JSB is offline   Reply With Quote
Old 24th August 2007, 16:23   #123 (permalink)
BHPian
 
DieselFan's Avatar
 
Join Date: Mar 2007
Location: Bangalore
Posts: 457
Default

Quote:
Originally Posted by JSB View Post
Which of the following styles is more fuel efficient and gentle on the engine:
1) U keep the car in gear and with the clutch pressed. This results in lesser gear shift but more usage of clutch. U end up riding the clutch for as much as 20-30 seconds.
Riding the clutch is a term used when you press the clutch half way down and roll forward. here the engine is engaged to transmission only partially. This is where the wear of clutch is maximum.

if the cluch is either fully engaged or fully disengaged then there is no problem.
Quote:
Originally Posted by JSB View Post
2) U keep putting the car in neutral, even for a short duration (2-3 seconds) and hence remove the foot from the clutch. This results in much more frequent gear shift but much lesser usage of clutch.
This is not necessary depressing the clutch fully will give you the desired result of disengaging the transmission from the engine.

Quote:
Originally Posted by JSB View Post
3) Is it advisable to directly start the car in 2nd gear instead of 1st?

Thanks in advance!
This is not advisable at all. Gear 1 exists for a purpose - to start the car from the position of rest and reach a speed of 10 kmph. At rest the car has high inertia for which we need a lower gear like gear 1 to handle that.
__________________
If you have not failed you have not tried enough.
Swift Diesel VDI - Feb '07 onwards
Santro LS- Mar '01-Feb '07(59000 KM) Sold.
DieselFan is offline   Reply With Quote
Old 24th August 2007, 16:42   #124 (permalink)
JSB
Newbie
 
Join Date: Jul 2007
Location: Mumbai
Posts: 4
Default

thanks DieselFan for the response.
i know that theres no difference in the 2 approaches in terms of results but are both of them same in terms of fuel efficiency and impact on engine? can i use any of the 2 styles? i was told by someone that u shud not keep the clutch pressed for a long time... rather change the gears frequently to neutral as that will gimme better FE..is this true?
JSB is offline   Reply With Quote
Old 24th August 2007, 16:45   #125 (permalink)
BHPian
 
androdev's Avatar
 
Join Date: May 2007
Location: bangalore
Posts: 499
Default

With modern ECUs, coasting (moving the car in neutral) consumes more fuel than driving in gear without accelerator input. Coasting is same as idling. But driving in gear without accelerator input or braking will cut-off the fuel. So if you are going downhill or coming to a signal stop, always slowdown in gear and not in neutral.

The simplest and the most effective rule for better FE is to use the accelerator pedal as less as possible (use the momentum properly)
androdev is offline   Reply With Quote
Old 24th August 2007, 16:51   #126 (permalink)
JSB
Newbie
 
Join Date: Jul 2007
Location: Mumbai
Posts: 4
Default

Quote:
Originally Posted by androdev View Post
So if you are going downhill or coming to a signal stop, always slowdown in gear and not in neutral.
oh! didnt know this...i generally put the car in neutral much before approaching the stop signal thinking that i am saving fuel this way since the car is not in gear!
will change this now..thanks androdev!
JSB is offline   Reply With Quote
Old 24th August 2007, 19:25   #127 (permalink)
Senior - BHPian
 
Surprise's Avatar
 
Join Date: Feb 2005
Location: Chennai
Posts: 1,321
Default

Quote:
Originally Posted by JSB View Post
oh! didnt know this...i generally put the car in neutral much before approaching the stop signal thinking that i am saving fuel this way since the car is not in gear!
will change this now..thanks androdev!
JSB, an intersting thread for you

http://www.team-bhp.com/forum/techni...l-right-7.html (Shifting to Neutral or Pressing the Clutch when Braking - Is this right?)
Surprise is online now   Reply With Quote
Old 16th November 2007, 14:58   #128 (permalink)
Newbie
 
Join Date: Oct 2007
Location: Bangalore
Posts: 3
Default

The FE article is very informative, i recently bought a LOGAN petrol 1.4 GLE, can i add the premium fuel like Extra premium, Speed, etc to improve the FE or it has no benefit in this direction, some one who has been driving LOGAN since its launch please suggest, thanks
Sameerw is offline   Reply With Quote
Old 16th November 2007, 15:51   #129 (permalink)
BHPian
 
diabloo's Avatar
 
Join Date: Jun 2007
Location: Bengalooru
Posts: 946
Infractions: 0/1 (4)
Default

Using premium fuel in normal passenger cars has no effect on either FE or power. Power might be boosted in race car engines, but not in normal cars. Only soothing factor of premium fuel is since they are expensive, they might be of good quality.
Note: i don't own Logan. This is my gyan from this forum.
Quote:
Originally Posted by Sameerw View Post
The FE article is very informative, i recently bought a LOGAN petrol 1.4 GLE, can i add the premium fuel like Extra premium, Speed, etc to improve the FE or it has no benefit in this direction, some one who has been driving LOGAN since its launch please suggest, thanks
__________________
NHC - City of Life !! - Symbol of Luxury
________________
diabloo is offline   Reply With Quote
Old 12th December 2007, 04:46   #130 (permalink)
Newbie
 
Join Date: Dec 2007
Location: Bathinda
Posts: 6
Default

FE also has to do something with the weight of our foot on the accelerator,the less you floor the accelerator pedal, less conumption andalways try and maintain speed while lightly taking of the weight on the pedal, it surely would contribute towards higher FE
fiat-jsp is offline   Reply With Quote
Old 2nd January 2008, 20:48   #131 (permalink)
Newbie
 
Join Date: Dec 2007
Location: Bangalore
Posts: 12
Default

Quote:
Originally Posted by Sameerw View Post
The FE article is very informative, i recently bought a LOGAN petrol 1.4 GLE, can i add the premium fuel like Extra premium, Speed, etc to improve the FE or it has no benefit in this direction, some one who has been driving LOGAN since its launch please suggest, thanks
As diabloo said, there wont be much/any difference on normal cars. But I think by using Extra premium or Speed you will get a better fuel (as they are less adulterated that normal fuel) and it will help your engine to live longer.
realswifter is offline   Reply With Quote
Old 3rd January 2008, 12:44   #132 (permalink)
GTO
Super-Admin
 
GTO's Avatar
 
Join Date: Feb 2004
Location: Bombay
Posts: 12,190
Default

Quote:
you will get a better fuel (as they are less adulterated that normal fuel) and it will help your engine to live longer.
I was hopeful of the same, but was proven wrong. Adulteration can find its way into premium fuels too!
__________________
GTO

Self-imposed limits are the only type that exist. Break them....then, make it a habit. Exceed.
  • Please don't PM for support. Use the Contact Form instead.
  • Please read the *NEW* Team-BHP FAQ section for all your queries.
GTO is offline   Reply With Quote
Old 29th January 2008, 13:39   #133 (permalink)
BHPian
 
joseph5600's Avatar
 
Join Date: Oct 2007
Location: Bangalore
Posts: 69
Default

I had a question regarding use of Air conditioner and achieving max kmpl.

1. Is the use of blower speed related to the working of the AC? ie. Suppose if we set the blower speed to the lowest, will it make the AC switch off automatically after the cabin gets cooled?
2. Is the same applicable with the thermostat? So if we set the thermostat to a medium temperature range, will it help in the switching off engine after the cabin temperature reaches the temperature set?
joseph5600 is offline   Reply With Quote
Old 29th January 2008, 17:21   #134 (permalink)
Newbie
 
Sagittarian's Avatar
 
Join Date: Aug 2007
Location: Chennai
Posts: 44
Default

Quote:
Adulteration can find its way into premium fuels too!
I remember a news item published some time ago in a news paper. There was a bit of an interview in it with a truck driver transporting fuel. The interviewer asked him whether he was carrying normal fuel or premium. You know what he answered? It depends on the tank into which it is emptied at the retail outlet!
So much about premium. I guess the only thing that one can be sure is the price - it is premium.
__________________
There is more to life than increasing its speed - M. K. Gandhi
Sagittarian is online now   Reply With Quote
Old 29th January 2008, 20:28   #135 (permalink)
BHPian
 
Join Date: Jun 2006
Location: Mumbai
Posts: 176
Default

Quote:
Originally Posted by Sagittarian View Post
I remember a news item published some time ago in a news paper. There was a bit of an interview in it with a truck driver transporting fuel. The interviewer asked him whether he was carrying normal fuel or premium. You know what he answered? It depends on the tank into which it is emptied at the retail outlet!
So much about premium. I guess the only thing that one can be sure is the price - it is premium.
WOW. Cant help but laugh at that!!!
I noticed in my Indica, i used to get at least 1 km less per litre of Turbo diesel instead of normal diesel. I stopped using turbo after that.
hrman is offline   Reply With Quote
Reply


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
What is your Actual Fuel Efficiency? normally_crazy The Indian Car Scene!! 1271 3rd June 2008 13:25
AVEO U-VA 1.2, Fuel Efficiency? Woods Sedans 1 4th September 2007 12:02
Fuel Efficiency Tips nicejits Modifications & Accessories 2 28th June 2007 13:27
Fuel Efficiency madhav Technical Stuff 10 5th June 2007 19:46


All times are GMT +5.5. The time now is 21:44.


Powered by vBulletin
Copyright ©2000 - 2008, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.1.0
Copyright ©2000 - 2008, Team-BHP.comAd Management by RedTyger

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430