Survey by Qualaroo
+ Reply to Thread
Page 15 of 23 FirstFirst ... 51314151617 ... LastLast
Results 281 to 300 of 441
Like Tree114Likes

Thread: Hypermiling (Getting unbelievable mileage on Petrol)

  1. #1
    PakWheeler Follow
    BilalYusrat's Avatar
    Join Date
    Mar 2009
    Location
    Peshawar
    Age
    30
    Posts
    656
    Follows
    0
    Following
    0
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0

    Default Hypermiling (Getting unbelievable mileage on Petrol)

    Hypermiling
    So basically ever since I posted the snaps/videos of getting 22.8 Kilometers/L and then 23.6 KPL I really think its time to share some of the driving habits I carry with me and learn about your driving habits too and see how we can all get the best mileage we can get from our cars and save a lot of fuel and money.

    How much saving are we looking at?
    Some people may think that the money we'll save this way is so less that its almost irrelevant. Its actually just the opposite. You can save yourself up to 50,000 Rupees a year if you're a good hypermiler (that's like buying a CNG kit every year!)

    If you're really good, you can get Petrol mileage which costs you even less as compared to CNG.

    There are hypermiling contests that take place in the west. People who win that contest have got up to 106 Miles per gallon (45 Kilometers per liter!!) at the end of the contest.

    Some hypermiliers in their daily routine get up to 21 Kilometers per liter in Honda Accord (I have a video of a person who gets this average that I will share) -- that's twice of what Honda Promises.

    My experience of Hypermiling is only with Petrol. But I am almost 60% sure that all these techniques do apply to CNG as well. So yes, you can also get phenomenal fuel averages regardless of which fuel you are running.

    Modify yourself, not your car
    As a hypermilier you must understand that there isn't alot you can do with your car that will save fuel, besides removing some useless load from it and checking tire pressure. The actual modification is in your own driving habbit, I'll explain what I mean by this below:

    How we do it

    If you have a 'real time fuel consumption graph' you will see that the most fuel is burnt when you are accelerating. In Honda City and the new XLi/GLi these things come in built from the factory (you can suggest more cars if you have in mind and I will add them in the list which do have these small gadgets). For a hypermiler these are a 'must have' If your car didn't come with one, you can purchase one that plugs into the OBD port and gives you the milage you're getting.

    Alternately you can carry 2 - 3 liters of petrol in a bottle and calculate average by emptying the tank.

    1. Manual Transmission is the best
    If you're going to Hypermile, you will want to try doing this preferably on a manual transmission car, one with a clutch. Manuals will get you a better average as compared to an automatic one.

    2. Slower acceleration

    The basic idea is to drive calm, less aggressive. If you're going to accelerate, do it slowly. I personally shift gears on 2000 RPM. Accelerating "too slowly" could also hurt your gas mileage. So I think the ideal revs to shift would be 2000.

    In an Automatic car, you should try to maintain RPM at 2000 and leave the rest on the car.

    3. Coasting
    You guys must have heard about 'gliding.' Gliding is something when the aeroplanes are flying but their engine's aren't working, or perhaps they don't have one.

    In cars, this phenomenon is called "coasting." In a MT car (Manual Transmission) you can put the car in neutral when you're not wanting to accelerate and that would be coasting for you.

    4. Drive like you're riding a bicycle
    This really really explains the fuel saving in car. Think as if you're on a bicycle. If you have to immediately go from zero to 20 kilometers per hour in a bicycle, you know that you will get tired very quickly because you'll have to give a lot of energy to it.

    Think of "energy" as "fuel" when thinking about car.

    But if you have to go from zero to 20 in, say, 10 minutes? You will reach that speed and still be fresh (meaning you will have lost lesser energy and reached that speed too).

    That's the same way it is with cars. If you're going to accelerate and do it slowly, you will save fuel and energy and still reach a particular speed.

    5. Avoid Breaks
    Remember that every time you are pushing the accelerator or your'e pushing the breaks, you're wasting fuel.

    When the car is 'coasting' and you hit breaks, you are actually loosing all the potential energy that your car has which is later going to cost you fuel when you want it back.

    6. Looking as far as you can
    As a hypermiler, you're going to want to look as far ahead on the road as you can. If you can see a red light at about 400 meters from you, you don't have to race to that point and then abruptly hit breaks. In Pakistan a lot of times there are road blocks, what most people do is that they hit breaks and stop one inch before the blocks (which reduces the probability of clearing of the road block).

    If you can see you're going to have to stop in about 500 meters, what you do is put the car in neutral and let it coast all the way for you. When the car is in neutral and its coasting/gliding, the average you're getting is about 50 - 60 kilometers per liter. This puts a big impact on the overall average of your car.

    I do this every time I reach a toll plaza on the motor way. People sometimes get passed by me at high speeds and then break right in front of the lane. Since I am slow, I get the chance to choose the lane that has the least amount of traffic in it.

    7. Drive below speed limit
    Within the city the speed limit generally is around 60 Km/h, and on the highway its 100 Kph, and on motor way its 120.

    I drive at between 90 - 100 on Motorway and easily get 22 KPL at the end of the journey.

    Lets us see if this speed really wastes a lot of time.

    The distance from the Peshawar toll plaza to Rawalpindi toll plaza is about 151 Kilometers. If you're driving on 120, you'll get an average of 16 KM/L. Basically there is a huge drop in average as soon as you go above 105 KM/H (I don't know why).

    Now, if your'e driving at 120 KM/H and you have to travel a distance of 151 KMs, you will do that in:
    Code:
    151/120 x 60 = 75 Minutes
    If you travel the same distance in 100 Kilometers/H the difference would be:

    Code:
    151/100 x 60 = 90 Minutes
    That's just a difference of 15 minutes? Not at all a huge difference? Right? For just the difference of 15 minutes in a 1.5 hour journey, you can save yourself up to 400 rupees per trip.

    So there is just a psychological effect in driving slow. People may over take you a lot of times and you may feel "Arrrggg!!" in the begging, but this feeling ends up as soon as you see the savings you're making. I personally have started feeling uneasy with 120 Km/h. I feel the most comfortable when I am at 90.

    As I wrote, its all about changing 'driving' habits. This is one of them.

    Slower speeds are much safer. You're almost completely in control of your car. Above 120, you really don't know what you're doing. If anything comes in front of you, even with ABS its going to take a while for the car to stop. At 90, it will be much more safe and easy to drive.

    Driving below speed limit also saves you from getting a chalan on the motorway. And best of all, its 'Good for the Engine." Making your engine cry on every trip probably will cost its life at the end of 200,000 Kilometers. But going slow really gives the time for the engine to breath and not over heat etc.

    The theory is that the less you push it, the happier it will be.

    8. You don't have to necessarily turn off the AC
    If the weather is not that bad, cloudy, or you're driving at early morning or evening, I think it is not difficult to drive without AC. Turning on the fan and setting it to fresh air mode should do it for you.

    But if you're driving in the middle of the day, you shouldn't turn off the AC. It does consume fuel but hypermiling is also about remaining as practical as one can be.

    What I personally do is that I put the fan speed to 4 for the first 10 minutes, and then immediately put it to 1 with AC on. When the fan is on 1x, it makes the AC trip a lot more often as compared to higher fan speeds. This keeps the temperature of the car reasonable and you can go ahead with the hypermiling as well.

    Remember it is always the best to close the windows and open it only when it is absolutely necessary. Turn on the AC if you want cold air or use the fan in the fresh air mode. Opening the windows increases drag that you would really want to reduce.

    9. Loose useless weight
    Sometimes there is some luggage inside your trunk that you haven't noticed. Its always the best to remove all the unnecessary stuff from the car.

    Also remember that if you've got yourself a CNG kit, you should try hypermiling WITH CNG and not with Petrol because the cylinder that you have in the trunk is 'heavy' and you're not really going to save alot with that thing still inside the car.


    10. Use factory settings for your car
    The more you modify your car, the more fuel you loose. Putting huge alloys, useless air intake and air filters, spoilers etc. All of these things will hurt your fuel average. Try your best to leave the car on factory settings for the longest possible time.

    My car has 100% factory tires with factory rims. I haven't got it tuned from any one besides changing the oil etc. I didn't let any body touch any other setting in the engine.

    12. Change Air Filter/Engine Oil/Oil filter on time
    Air filter specifically helps. Although when I got 22.8 KPL I had not changed any of these things in the past 5000 kilometers. But when I did, I got 23.6 KPL. So surely these things help. Make sure you change Air filter every 6 months. It does not hurt the savings. On petrol its normal to change Engine oil/oil filter after 6000 kilometers. Don't be miser about putting the best Engine oil out there.

    13. Maintain the momentum
    Another thing you would want to do is maintain the momentum. This is very important and effects about 30% of your fuel efficency. Accelerating and decelerating again and again is a very bad habit of driving. Try to maintain a particular speed for the longest possible time. Again consider cycling. If you're on 20 KM/H on cycling, you're hardly pushing the pedals but the cycle is going at a nice speed. Same goes for cars, they will drink very less fuel and save a lot of money for you.

    14. Some extreme hypermiling techniques that I don't recommend:
    Some crazy hypermilers go to extreme with saving fuel and do a few things that are not advisable to everyone. Only the most experienced people should practice these.

    These include putting more air in your tires than usual. This reduces the drag on the tire.

    Drafting behind bigger trucks. Some trucks on the motor way are going at 100 KPH. Drafting behind them does safe fuel. When you drive behind them, the resistance of the air that your car faces when there is no one in front of it is gone because then the truck will face that resistance and you're car will have to put less effort to drive.

    Thirdly, some extreme hypermilers turn off the engine when they are going on a down stream. Obviously when the car is off and you're going down stream, you are getting infinite kilometers per liter. But this is not at all recommended by me. May be you guys could do some research on this on your own and come back with the results and share it here.

    Some people even remove the spare tire to reduce weight.. again this is one of the extreme steps.

    ===========================================
    This is all I can think of for now. Please do come with your findings and let us all know how much you've saved. I'll be posting a video as well about hypermilers and their interviews momentarily.

    Say to the believing men.. www.muhammadbinyusrat.com/blog/

  2. #281
    PakWheeler Follow
    jAzZy_Bhai's Avatar
    Join Date
    Mar 2011
    Location
    Karachi
    Posts
    178
    Follows
    0
    Following
    0
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0

    Default

    an example of Hypermiling by me...

    YouTube - My Honda city Hypermiling

  3. #282
    PakWheeler Follow
    navidzafar's Avatar
    Join Date
    May 2010
    Location
    Lahore
    Age
    39
    Posts
    166
    Follows
    0
    Following
    0
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0

    Default

    ???
    Do good, have good.

  4. #283
    PakWheeler Follow
    Sp95's Avatar
    Join Date
    Jul 2011
    Location
    Karachi
    Posts
    53
    Follows
    0
    Following
    0
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0

  5. #284
    PakWheeler Follow
    usmankhichi's Avatar
    Join Date
    Jan 2010
    Location
    Lahore
    Age
    34
    Posts
    20
    Follows
    0
    Following
    0
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0

    Default

    Very Detailed and thoughtful Information here, i read this post about 3 weeks ago and i must say by applying some key elements i have gained 15-20 Km avg on CNG and petrol.
    2 Thumbs up for this useful post.

  6. #285
    PakWheeler Follow
    dr_azharhayat's Avatar
    Join Date
    Oct 2005
    Location
    Rawalpindi
    Age
    51
    Posts
    6
    Follows
    0
    Following
    0
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0

    Default

    I travelled from lahore to Islamabad via M2 and recorded a fuel average of 21.66 Km/L. My car is a Honda City Automatic 2004. I tried to maintain a steady speed at 90-95 Km/Hr. Believe me it is difficult to drive like that but when you see the resulting savings ... well it is worth every penny (Rupee).

  7. #286
    Senior PakWheeler Follow
    ansarghani's Avatar
    Join Date
    May 2005
    Location
    Peshawar
    Posts
    1,526
    Follows
    1
    Following
    2
    Mentioned
    8 Post(s)
    Tagged
    1 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0

    Default

    good info...
    '73 Corona MarkII...

  8. #287
    Senior PakWheeler Follow
    fahadsoulsnatcher911's Avatar
    Join Date
    Jul 2009
    Location
    Karachi
    Age
    21
    Posts
    2,876
    Follows
    0
    Following
    0
    Mentioned
    7 Post(s)
    Tagged
    0 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0

    Default

    The best ive gotten is 95km at a speed of 60 on Sharah e Faisal max RPM was 2k i find it a pleasure to drive within speed limits

  9. #288
    PakWheeler Follow
    qaswah's Avatar
    Join Date
    Feb 2007
    Location
    Wah cantt
    Age
    35
    Posts
    168
    Follows
    1
    Following
    0
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0

    Default

    there are two main things ....
    1) human effort is equally involved wrt after market mods...
    2) how much willing u r to get averages.

    your foot work counts...coasting....drafting....passenger load.....engine power to body weight ratio counts.... so a lot things.....lighter rims....bigger intake....bigger down pipe....wheels thickness ....carbon fiber hood/trunk/body panels.......lighter seat.....

    so a lot of things are there if u want to get ideal averages but your intention to get the best is most important.....you cant think about hypermilling with a v8 sitting under the hood or a turbo turbine not spooling enough

    so its all about what you want.....and u can go to any level u want or u can spare....

  10. #289
    PakWheeler Follow
    navidzafar's Avatar
    Join Date
    May 2010
    Location
    Lahore
    Age
    39
    Posts
    166
    Follows
    0
    Following
    0
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0

    Default

    ^ Absolutely right.
    Do good, have good.

  11. #290
    PakWheeler Follow
    oklodhi's Avatar
    Join Date
    Oct 2007
    Location
    Lahore
    Posts
    440
    Follows
    0
    Following
    0
    Mentioned
    3 Post(s)
    Tagged
    0 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0

    Default

    I tried some of your techniques. I recently travelled from Lahore to Islamabad on motorway. I changed gears at 2,000 rpm and traveled at a speed of 100km /hr.
    I got mileage of 19.7km /L. My car is Lancer 2007 manual.
    Range Rover Classic 1986 3.5L Petrol V8

  12. #291
    PakWheeler Follow
    idealali's Avatar
    Join Date
    Mar 2006
    Location
    Karachi
    Age
    34
    Posts
    129
    Follows
    0
    Following
    0
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0

    Default

    I have been using these techniques with my Honda City MT 2011 lately. I drive every day in Karachi in office rush hours between Malir Cantt and Clifton beach and last when I re-fueled, I got 16.8kmpl (the in-car mileage meter was showing 18.8kmpl, there is usually an error of 10% from actual).

    These techniques do work in the city as well but you have to be really patient. Good thing is that you can't speed up on Karachi roads anyways.

  13. #292
    PakWheeler Follow
    Fahadlm's Avatar
    Join Date
    Aug 2011
    Location
    Islamabad
    Posts
    60
    Follows
    0
    Following
    0
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0

    Default

    heyy.. nice post ... my LIANA got two cylinders.. I could get one off... will that help??.. with pick n economy?

  14. #293
    Senior PakWheeler Follow
    onlyfaith's Avatar
    Join Date
    Sep 2010
    Location
    Islamabad
    Posts
    5,934
    Follows
    3
    Following
    1
    Mentioned
    8 Post(s)
    Tagged
    0 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0

    Default

    some really nice tips.
    we all definately need to save fuel.
    because of rising price of cng. i ve gone back to petrol.
    we all should buy cars now that have the best fuel average, i am talking abt small cars with efi engines..


    1 more thing i never get more than 15-16KM/litr on long routes that too without AC
    top documentaries " Tears of Gaza"

  15. #294
    Senior PakWheeler Follow
    takko's Avatar
    Join Date
    Dec 2005
    Posts
    5,047
    Follows
    0
    Following
    0
    Mentioned
    17 Post(s)
    Tagged
    2 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    1

    Default

    CNG is still a good buy.. gettin more mileage compare to petrol..

    however hypermiling is a gamble, especially in city driving.. u can loose time standing on red lights.. while opportunity cost interms of time wastage, longer engine running time, and damaging engine while constantly running it on low rpm [suggested by toyota]


    not to forget u gonna develop knee and ankle pain soon
    people who use Highbeams.. once day would suffer too bigtime. People who drive slow on fast lanes, remember one day a vehicle carryin ur son, dad might get late to hospital coz people like u. underaged driving will land u in bigtime trouble one day or the other.. And the Blue indication light on ur speedometer denotes "High Beams"

  16. #295
    PakWheeler Follow
    TjAwan's Avatar
    Join Date
    Mar 2009
    Location
    Rawalpindi
    Age
    27
    Posts
    11
    Follows
    0
    Following
    0
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0

    Default

    Hypermilling is not my thing
    Perfection Locked

  17. #296
    PakWheeler Follow
    quaidian's Avatar
    Join Date
    Oct 2006
    Location
    Lahore
    Age
    38
    Posts
    329
    Follows
    3
    Following
    0
    Mentioned
    11 Post(s)
    Tagged
    0 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0

    Default

    Just looked at this thread today, I have recently upgraded from Suzuki Khyber CNG to Vitz 2004 Automatic/Petrol and will surely try some of the tips in Lahore city and highway travailing and will share the results.
    * The difference between genius and stupidity is that genius has its limits *

  18. #297
    Senior PakWheeler Follow
    talhawaleed's Avatar
    Join Date
    May 2009
    Location
    Islamabad
    Posts
    1,812
    Follows
    1
    Following
    0
    Mentioned
    115 Post(s)
    Tagged
    2 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    1

    Default

    Hypermiling is also not my stuff but I do have request for all the hypermilers,


    1) Kindly drive in your own lane
    2) Give indicators and look behind before turning
    3) Also, please stop over taking another hypermilers.

  19. #298
    PakWheeler Follow
    Hassan1992's Avatar
    Join Date
    Jul 2010
    Location
    Peshawar
    Posts
    40
    Follows
    0
    Following
    0
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0

    Default

    Bro, im ur Fan nw ! ;-)
    Will try to change my driving habits, i think i waste a lot of Fuel everytime i drive ! =l
    But i'll try not wasting it anymore ! ;-)

  20. #299
    PakWheeler Follow
    BilalYusrat's Avatar
    Join Date
    Mar 2009
    Location
    Peshawar
    Age
    30
    Posts
    656
    Follows
    0
    Following
    0
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0

    Default

    Best of luck!


    @talhawaleed These instructions are not specific to hypermilers, they are generic enough to fit anyone that drives a car.
    Say to the believing men.. www.muhammadbinyusrat.com/blog/

  21. #300
    PakWheeler Follow
    BilalYusrat's Avatar
    Join Date
    Mar 2009
    Location
    Peshawar
    Age
    30
    Posts
    656
    Follows
    0
    Following
    0
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0

    Default

    Quote Originally Posted by takko View Post
    CNG is still a good buy.. gettin more mileage compare to petrol..

    however hypermiling is a gamble, especially in city driving.. u can loose time standing on red lights.. while opportunity cost interms of time wastage, longer engine running time, and damaging engine while constantly running it on low rpm [suggested by toyota]


    not to forget u gonna develop knee and ankle pain soon
    Engine running time is irrelevant because mileage is calculated based on "fuel spent divided by kilometers traveled" no matter how much engine's running time increases or decreases.

    Engine damages when you run it at higher RPMs, it causes much more wear and tear and you have to change engine oil earlier if you're an immature driver compared to a mature person.

    How do you develop knee and ankle pain by driving less aggressively?
    Say to the believing men.. www.muhammadbinyusrat.com/blog/

+ Reply to Thread
Page 15 of 23 FirstFirst ... 51314151617 ... LastLast

User Tag List

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •