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Old 31st July 2007, 10:18   #16
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I think 60km/hr in 5th gear is a good combo of speed and efficency as the rpm is well below 2000.
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Old 31st July 2007, 10:28   #17
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Quote:
Originally Posted by tsk1979 View Post
I am a diesel head, what do I know
Hmm...Mods quipping at hapless members
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Old 31st July 2007, 10:30   #18
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i dont know about you guys but i find 70kmhr the normal speed if your running on free flow and a CIA, i achieved crazy miellage figures,

i dont care what people say i achieved 25kmpl, and for the last time i am not selling my car!
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Old 31st July 2007, 11:10   #19
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it not only depends on how one drives, it also depends on other factors like the fuel, engine condition, tyre pressure, aerodynamics, weight, and finllay who is driving..
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Old 1st August 2007, 03:42   #20
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Good luck to all those trying to get maximum FE driving at a fixed speed.
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Old 13th December 2007, 09:51   #21
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Friends, Car to me has to be a mean machine which atleast should be driven at 80-90kmph. But few of our friends are advocating to drive at 50-60kmph to get a greater mileage. But for getting a greater mileage you should drive on two wheels only(i mean two wheelers like bikes!!!!). Come on.. I dont want scooty ladies to overtake my car and give a hard to understand look at me as if they have conquered something.
No offences meant!!! on a lighter note!!!
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Old 13th December 2007, 11:04   #22
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My most economical speed in the 1.3 push-rod ikon is 100kph.
19.75kmpl is what I got.
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Old 13th December 2007, 15:37   #23
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One can achieve crazy FE figures by driving at optimum rpm in all gears and not ripping with a lot of sedate cruising.
But then whats the point of doing that if your not gonna enjoy it. I would say drive and have fun and don't think too much about FE.
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Old 14th December 2007, 13:51   #24
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I own a Getz PRIME 1.1. The manual suggests the best optimal speed on 5ht gear to be 60 km/h. But the speedometer shows a red line at 50 km/h (Looks like an economy indication) I am still confused as of what would be the optimal speed (or RPM in 5th gear) to get max. fuel efficiency. Right now I am getting around 12km/l in city with 30% A/C.
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Old 15th February 2008, 23:58   #25
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Hi,on my 800 carb model driving on the mumbai goa highway at a indicated speed of 70 kmph on the speedometer would return a average of 19 kmpl.We would reach our destination,Vengurla which is 540 kms from mumbai in 10 hrs.
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Old 16th February 2008, 04:34   #26
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Does anyone know at what RPM is the peak-torque of an Opel Astra?
(1.6 Petrol) And what would be the best speed for better FE?

You see, Astra anyways is not an efficient car, but drives & handles like a dream so i drive spirited every once in a while and she drinks petrol like water, so i try to drive economically the rest of the time to make up for it & squeeze a little more efficiency.
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Old 16th February 2008, 04:44   #27
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If it shares its engine with the 1.6 corsa,then:
Peak torque:12.2kgm at 3200rpm
Peak power:92bhp at 5600rpm
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Old 18th February 2008, 11:39   #28
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Quote:
Originally Posted by nitrous View Post
My most economical speed in the 1.3 push-rod ikon is 100kph.
19.75kmpl is what I got.
Same with me for OHC 1.3. I got around 20.5kmpl (no luggage, 1 passenger + Myself)
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Old 18th February 2008, 13:04   #29
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it all depends on the sound of your vehicle when it feels least stressed is the most optimum speed with a very light foot on the pedal (just a quart depression of the pedal should see you in speeds of 80kmph+ ).

The above happens in a well maintained car and clean engine and depends very much on the Gear Ratios, 50kmph for some car may be economy but in my case with a Nissan engine i have to be above 65kmph to get to slot in Top Gear.
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Old 18th February 2008, 15:44   #30
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Hey Joseph5600,
Same with my Astra, there is a red line at 50. I have always wondered why.
My Dad also said the same thing that it is where you get max.FE. But im not convinced.
And that too on a German car made for highways!
Could someone please shed some light on this.
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