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Old 22nd September 2007, 15:06   #91
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The FE always depends on driving styles. But of late my car's FE has dropped to 12kms. I always used to get 15kms. I am getting it checked next week when back in Chennai. My driving style has changed at all.

The shuddering people are refering to is indeed a map error. I am trying to get my ECU remapped or changed under warranty.
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Old 23rd September 2007, 03:27   #92
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If everyone is getting 12, then I wouldnt have had any problems.
But the thing is that EACH of my friends who have Alto's claim 15kmpl in city with A/C.
My friends get 12kmpl with A/C in Swifts. That is 1300cc.
My puny 800cc gives same economy. :-(
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Old 23rd September 2007, 07:45   #93
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I too get only 12-13 km/l in my May 2004 Alto LXi. I just checked today. Filled the tank ran for 170 kms on the trip meter. filled again till auto cut-off, it took in 13.60 lts. so the mileage is 12.5. This is in mixed conditions (50% A/c + 40% highway+ 60% city use)

@Scary- I too have this shuddering you have mentioned. But for me it appears only after the car has gone through one cooling period in the day i.e once i start in the morn it is smooth and once i travel 10 kms and stop for say 1 hr and then start the vehicle the shuddering starts. does this happen to you too? or is it there from the start?

@ Ajo- if the above problem is due to the ECU, it never appeared in the last 2 years for me. it only started some 1 month back and I am sadly out of warranty now.

I spoke to the MASS too and they opined that a mileage of 12-13 is what we can expect out of Alto, anything more than that is our luck is what they say.

Anand.S
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Old 24th September 2007, 08:43   #94
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there are many tech. things we can do to improve the milage-technically by improving the efficiency check out the thread - max kmpl-and how to achive it !
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Old 25th September 2007, 13:26   #95
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Originally Posted by mavrick View Post
2006 sep alto done only 3000+ but on the delhi to haridwar and back to delhi.FE is 18kmpl with 4 person including driver AC 100% on and speed 70-80kph on normal petrol.many delhi t-bhpian know about the pathetic condition of that highwa. car is totaly stock cond.
now my car done 6000+.FE in Delhi traffic condition is 15kmpl and from Delhi to Ajmer FE is 17kmpl with @ speed 100+ always.All figures with 100% ac and on normal petrol.
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Old 25th September 2007, 17:21   #96
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Hi, I own a 2000 Alto Vxi - that's the short-lived model with the F10D motor. A year ago I had the engines' head ported, polished, & shaved. Also got a cold-air intake, free-flow exhaust, sports muffler, Iridium plugs, & 175/60R13s. I always go tank-full to tank-full, & have been using only Speed97 in my car ever since it became available. Even with all these mods, in the city, my car returns an average of 11.5 Kms/liter with frequent A/C use. On two highway runs to Coimbatore, I got 18.0 Kms/liter.

Pinkish-brown coloration of spark-plugs is generally considered a good indication that your engine's running neither lean, nor rich. If tire pressure's are not too low, binding brakes could be an issue. Maybe an easy test would be to simply jack the car up, & try rotating the wheels, one at a time to see if they rotate freely. Could a clutch problem, like a slipping clutch, reduce fuel efficiency ?
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Old 25th September 2007, 18:30   #97
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Quote:
Originally Posted by im_srini View Post
& have been using only Speed97 in my car ever since it became available.
off topic, is your engine designed to use 97 octane? ever compared 87 octane and 97 octane in your car?
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Old 26th September 2007, 14:22   #98
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Hi Vivek, no - I don't think the F10D motor was designed with 97 octane in mind, i.e. if by design you meant compression ratio (well not exactly CR, but absolute pressure at TDC). I've progressively upgraded from pump-gas, to Speed, Speed93, & now Speed97, as & when they became available here in Chennai. The engine seemed to run smoother when I switched to Speed all those years ago, but the rest (Speed93 & Speed97) did not bring out any perceivable differences. I remember that my engine used to knock close to the rev-limit with pump-gas, & now I guess, Speed97 helps with knock since I'm running a shaved head.
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Old 27th September 2007, 09:13   #99
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Default some thing to say!

lowest octane petrol which will resist knock in your car will give u highest fe!
u got the engine modded for low end grunt or top end blast? u cant have both unless too much of money is spent on it !--
even the presence of naptha will colour the plug chocolate brown!!!
Quote:
Originally Posted by im_srini View Post
Hi, I own a 2000 Alto Vxi - that's the short-lived model with the F10D motor. A year ago I had the engines' head ported, polished, & shaved. Also got a cold-air intake, free-flow exhaust, sports muffler, Iridium plugs, & 175/60R13s. I always go tank-full to tank-full, & have been using only Speed97 in my car ever since it became available. Even with all these mods, in the city, my car returns an average of 11.5 Kms/liter with frequent A/C use. On two highway runs to Coimbatore, I got 18.0 Kms/liter.

Pinkish-brown coloration of spark-plugs is generally considered a good indication that your engine's running neither lean, nor rich. If tire pressure's are not too low, binding brakes could be an issue. Maybe an easy test would be to simply jack the car up, & try rotating the wheels, one at a time to see if they rotate freely. Could a clutch problem, like a slipping clutch, reduce fuel efficiency ?
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Old 8th October 2007, 14:35   #100
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Update:-
Lastest figure is 11kmpl. City conditions. Light foot. No idling at traffic lights or being stuck in traffic jams. Light cruising in top gear whenever possible.
70% A/C.
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Old 8th October 2007, 14:38   #101
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I will go for fueling today and will post the statistics by tomm !!!
Lets c how Alto fares !!!
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Old 8th October 2007, 14:45   #102
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Quote:
Originally Posted by ScarySkulls View Post
Update:-
Lastest figure is 11kmpl. City conditions. Light foot. No idling at traffic lights or being stuck in traffic jams. Light cruising in top gear whenever possible.
70% A/C.
i think its too low FE but why.if my alto start returning these figures so then i m gonna

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Old 8th October 2007, 15:29   #103
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Guys,

I think you should get 15-16 in the city.
My wagonR Lxi gives avg 14 in bangalore city traffic with 30-40 % ac On.I use only shell normal petrol. The worst i got in last 8 months was 13.83 and the best city figure was 14.45 (last fill).
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Old 9th October 2007, 17:27   #104
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Hi All,
I am getting around 12 kmpl in my Alto LXI with around 70% time AC on. My vehicle is under 1000 km run till now. Is this acceptable mileage ??
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Old 9th October 2007, 18:58   #105
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Default Loose clutch - Lower FE??

Wanted to know if a loose clutch increases fuel comsumption? I asked to tighten my clutch in the last service and need to check the FE now. It was 12kms (Dropped from 15kms 3 months back) in heavy traffic with full AC.
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