plainman007

My New Nano, small question regarding the running in period.

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Hello Guys,

I just bought a Nano CX - BS4 in addition to the Zen and Eeco which i already have. I bought it just for the fuel efficiency touted. My first tank full to tank full test shows 20kmpl. With mixed city and highway driving of equal proportions. Always driven only with Ac on. I will be doing a detailed feedback/review of the car shortly.

As of now my main question is : On the front windshield theres a sticker mentioning a running in period which says for the first 1000kms or so to keep within these speed limits..... "Gear 1 - max 10 kmph. Gear 2 - max 25 kmph, Gear 3 - max 40 kmph and Gear 4 - max 60 kmph".

I have kept within these limits for the last 300kms of driving. Now i need to take this car on a long drive of 1200kms total. WIll there be an issue if i drive it on the highway at slightly 60+ ? Like say about 65-70kmph max ? Will even this slight deviation ruin the engine or its fuel efficiency in some way ?

Please do let me know asap.

Thank You.

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Congratulation on new buy.

I would say, it depends, if the car is going to be run with AC on and 4 Pax (adults) then because the engine is new and so the initial wear and tear should be expected.

I would suggest you stay within 60 KMPH limit till first service, however, during some intervals you can rev the engine a little for a short duration which will eventually help the engine to get tuned to right way.

So, go on for 1200 KM journey, stay in 60 KMPH limit but also push the car ocassionally for short-short duration (65 to 70 KMPH). This would not effect anything.

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This is a very small deviation you are playing with and will not do much damage,if any.

The idea is to drive at all possible values of the speedometer within the specified range.

Its just an after-thought but why to do it at all.Going slow also makes the ride more comfortable and safer for you and the occupants on the notorious highways we have.

Congratulation on the new car , have you decided to keep it in stock condition or do you plan to spice it up,what have you added to your new ride till now.

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Congrats on your new buy. Yes stick to the speed limits mentioned on that sticker for the running-in period. Do start up a new-car ownership review thread on our forums if possible :)

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Had to call off the trip. Due to the NANO actually. I was planning the trip itself just to give the NANO a test run. Im very disappointed to have found out by a tank full to tank full test that the nano is now giving me 12.5 kmpl in city with ac switched off half the time. Ride quality is horrible to say the least, but more of that in my forthcoming review. I was anyway not venting about all these inconveniences due to the fact that i bought this just for the mileage.

The first tank full test it yielded 20kmpl with 50% city and 50% highway driving. The second tank full reveals that im now getting only 12.5 kmpl because there was no highway driving. Thats horrible given its queer looks and autorickshaw styled sound which it does produce.

I really regret having bought this car and even just called off the trip because this was such a let down. Whats the fun of going in this when i can drive with my super spacious Eeco 5 seater minus the queer look of the poor mans car with the same mileage !!! Also the engine feel is never consistent like my Zen / Eeco. The car keeps on switching off in traffic and refuses to restart immediately. 6-7 shut offs in every small 12+12 km trip. And now finally this mileage. I know the mileage 'might' improve in the next service (not guaranteed though). But what improvement might i see, 2-3 kms ? Not worth it.

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Strange to see the fuel economy almost halfed, you must be driving in a very busy part of the city.

You have mentioned that you get better fuel efficiency when it was a fifty fifty split.You have now found out that a strictly city drive gives you an average of 12.5kmpl .This logically means on a strictly highway drive you are bound to get over 20kmpl which was the fifty fifty split average.

Why are you ditching it now , have a shot at it once again for this highway trip , it will definitely get you over 20.You will never know untill you take it out this time.

Whats this with the engine not starting after a stop , have it checked , hoping its not because of over heating , in that case take it to the workshop before you take the trip,coz on such a long trip its bound to heat up more than that in a normal day.

Just a personal/ friendly suggestion.

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Actually i might take the journey tomorrow. Like you said. Thats a presise guesstimate that youve made. With 50/50 city/Highway driving a yield of 20kmpl is decent. So techincally a 100% highway drive should give me the promised 25kmpl of highway FE.

Another quick question is that i dont have my original RC book since the vehicle is just 5 days old and they said the original RC gets issued and will reach the showroom only after a month from purchase date.

Will the forest dept or any check posts need this when passing thru marayoor etc ?

Thanks

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RC usually takes 2-3 months , just keep the originals with you and you are covered ,keep the insurance papers handy too.I cant be specific about the place you are talking about but with the right documents it should be a breeze.

Also make sure that the person in whose name the car is ,is also one of the passengers ,this makes the things so much easiers.

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Never mind brother.

I remember my Alto lxi gave me 10-11kmpl in city during very first 300kms, later on it really improved to 14-16kmpl with AC on in full city driving. Even my Swift Dzire gave the same mileage initially.

So don't worry Nanos' are known to deliver 15kmpl very easily with AC on in full city driving(excluding crowded bazaars & trafic jams).

Give the time to your cute l'll Nano to improve on it.

Advice to extract more fuel efficiency from your car:

-Never drive your car with using more than 70% of the accelerator pedal.

-Don't switch on & off your car repeatedly, atleast within a minute of gap.

-Never over-rev your car un-necessarily.

-For cars with small engines i.e <1000cc, try to switch on the AC while moving. Try to avoid to begin with AC on.

Goodluck.

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Strange to see the fuel economy almost halfed, you must be driving in a very busy part of the city.

You have mentioned that you get better fuel efficiency when it was a fifty fifty split.You have now found out that a strictly city drive gives you an average of 12.5kmpl .This logically means on a strictly highway drive you are bound to get over 20kmpl which was the fifty fifty split average.

Why are you ditching it now , have a shot at it once again for this highway trip , it will definitely get you over 20.You will never know untill you take it out this time.

Whats this with the engine not starting after a stop , have it checked , hoping its not because of over heating , in that case take it to the workshop before you take the trip,coz on such a long trip its bound to heat up more than that in a normal day.

Just a personal/ friendly suggestion.

Hi Librankur,

I bit the bullet and made the trip. I got a FE of 27 kmpl upjourney and 23.5 kmpl returning to Chennai. It was just me + 1 passenger + baggage with the rear seat folded down. Though it was pretty boring considering i always used to touch 80-90 but never more in my Zen. My Eeco hasnt run much at all, just 1800 km on the odo :huh: and its going to be 2 years old though its in brand new showroom condition.

I did keep within 60-70 kmpl green bandwidth of the speedometer for the up journey and half the return trip. During half the rturn trip i had crossed the 1200 km mark so i occasionally touched 80 but not continuously. I guess that explains why i got lesser FE.

Ride quality is ok given the price of the vehicle. You get what you pay for. Seats are stiff and not too suited for long drives. You need to stop and stretch at least once every 100 km.

One huge problem i faced was getting speed petrol. Speed isnt available at any of the bunks after Trichy. So i had no other go but to use normal unleaded petrol for the uphill climb and thereafter till i returned to Chennai.

Over the past 20 years ive only used speed since it was released and prior to that, only unleaded. Always opted for the best option. I dont know if this figures in my bad FE. But people say that because the Nano is a 2 cylinder engine it doesnt matter if its normal unleaded or speed fuel. Is this true. It has no bearing on FE and engine life and smoothness of the engine ? Plz let me know and i will stick to normal petrol.

Totally the Nano consumed about 61 ltrs of petrol for a trip of 1392 km (600 kms Chennai > Munnar, 192 kms of sightseeing within Munnar, 600 kms return to Chennai) which totals up to 22.8 kmpl. But this is only a ballpark figure since the up journey returned a different mileage compared to the return journey. The hill climbing and slopes must've also had their toll on the mileage. In which case on sea level driving it should probably offer about 25 kmpl.

FWIW The forest dept check posts dont ask for any documents. Just that you sign in a register at about 5-6 points as you ascend uphill. Occasionally they only ask for one document sheepishly. The one with gandhiji's head on it. 20-30 should be ok. Though smiling and ignoring them also works ;).

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Never mind brother.

I remember my Alto lxi gave me 10-11kmpl in city during very first 300kms, later on it really improved to 14-16kmpl with AC on in full city driving. Even my Swift Dzire gave the same mileage initially.

So don't worry Nanos' are known to deliver 15kmpl very easily with AC on in full city driving(excluding crowded bazaars & trafic jams).

Give the time to your cute l'll Nano to improve on it.

Advice to extract more fuel efficiency from your car:

-Never drive your car with using more than 70% of the accelerator pedal.

-Don't switch on & off your car repeatedly, atleast within a minute of gap.

-Never over-rev your car un-necessarily.

-For cars with small engines i.e <1000cc, try to switch on the AC while moving. Try to avoid to begin with AC on.

Goodluck.

Hello Dr.Nishu,

I think only my city mileage is bad. Been driving for a very long time. I have never ever revved a vehicle at all. And nobody knows when i change gears due to the fluidity in shifting gears. I always punch the ac compressor button off when standing at signals or moving. Only after i change back to 5th gear in my zen etc do i push the button back on. Also when its chilly enuf i push off the button till needed again. Ive never ever driven my cars without ac though.

I just like maintaining my vehicles in immaculate condition and cant stand dust and polutants harming the vehicle and my lungs probably. Only recently ive made it a habit to atleast once a month wind down the window glasses and then immediately back up again since they get stuck and never open when it goes for service :D . All three cars if you try opening the window, ull find them stuck hard due to never being put into service. Keeps the interior of the car newer and clean.

And i touch very softly on the accelerator. My heart will bleed if i hear the engine revving. This is why the nano, being 2 cylinder and beaty in engine switches off often for me since i very softly accelerate and release clutch. Im known for very gentle take offs :P . But i think the nano in first gear needs a tad bit of revving to start off. I immediately shift into 2nd when the vehicle has just moved.

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And i touch very softly on the accelerator. My heart will bleed if i hear the engine revving. This is why the nano, being 2 cylinder and beaty in engine switches off often for me since i very softly accelerate and release clutch. Im known for very gentle take offs :P . But i think the nano in first gear needs a tad bit of revving to start off. I immediately shift into 2nd when the vehicle has just moved.

Yes, might be due to this your Nano engine stalls many a times, while driving & it actually happens more when you drive a Less powerful car after a High power car.

But it might be happening more in the your Nano, as it's very New(<1000kms driven) & till first 3000-4000 kms, the engine & its other working parts are more in a tight condition, so needs more effort to keep them in the motion & TATA engines being less refined than its other refined competitiors' make you fell slightly even more troublesome, but don't worry things will take their own sweet time to shape up.

Goodluck.

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Dr.Nishu, Yes the jump from powerful cars to this might be the reason. The clutch ratio to which im used to is very subtle. I will be doing an indepth ownership review of the new car since ive driven it for 1800 kms now.

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Great to see that you took the plunge and came out on top.25Kmpl (averaging both your trips) is an extremely heart warming to hear.

Frankly, i have never owned anything till now that can even top 12kmpl.Keep taking good care of the car and it will treat you well all its life.

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Use 3:1 or 4:1 Unleaded/Normal: Speed petrol tank fills.

Excessive use of speed petrol also can cause harm to the engine.

Both Tata & Maruti Suzuki car engines are well calibrated for variable quality of Indian fuel, so you don't worry about them while refilling at the fuel-station.

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When this fuel was initially launched , it was more recommended for older vehicles than newer vehicles .

These fuels boost of better engine cleaning components which are more required in older vehicles than newer ones.

I dont know how true is the increase in mileage factor , never seen it in my vehicle though.Even if this fuel increases the FE the premium it charges is not worth it .Look closely the price of Branded Diesel is almost equivalent to petrol prices in Delhi, what would one save on the purchase of a diesel car and its usage if they spend on this premium fuel regularly.

I would use it occasionally to clean my diesel / petrol engines nothing else. I hope it atleast falls true on the cleaning bit.

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