[KSM-Vtec]

well i guess that will remain the same in case of people sitting in the car also.

Originally Posted by sparkguy

Consumption of fuel increases exponentially. I have myself observed that Alto gave mileage of 11 km/lt when loaded with dead weight in boot.

[Proxima]

Originally Posted by KSM-Vtec

well i guess that will remain the same in case of people sitting in the car also.

I guess cars with high torque (like common rail diesels) will show little difference when loaded vs unloaded. Not sure though.

[amit_mechengg]

Originally Posted by sparkguy

Consumption of fuel increases exponentially. I have myself observed that Alto gave mileage of 11 km/lt when loaded with dead weight in boot.

even when the car is loaded with say 5 people and luggage in the boot there is no drastic change in mileage. in my last 500 kms trip while going 250 kms my average was 19.5 and while coming it was 19.2, with 3 people addition with some luggage. i dont see major effect of loading here.

[abhinav.s]

Along with suspension and tyres wearing out quicker than normal, braking is definitely an issue as mentioned. I have noticed this on my Zen, when it was loaded with all kinds of luggage ranging from cushions to suitcases to fruit baskets!!

[amit_mechengg]

if you do overloading like towing another car or so definitely clutch will get effected. there is always a safety limit while designing each and every automobile parts, but above this they surely fail.

[phamilyman]

Talking about overloaded vehicles - i doubt anyone in India can top this:
http://www.theguardian.com/world/vid...0-people-video

It doesnt look bigger than an Eeco

[Rahul Bhalgat]

Originally Posted by mithun

Is there any other problems caused by car overloading other than suspension & tyre damage ?

What about the chassis ?

As mentioned by the other members, overloading takes a toll on tyre, suspension and clutch. Also, the braking is affected; increasing the stopping distance. This is dangerous to others on the road too.

About chasis: The modern cars do not have a separate ladder type chasis. They are monocoque. The car shell (or body) itself is taking the load. With overloading, the welds in the body may come apart, the body may deform. Clutch or brake damage can be repaired but damages to monocoque body are costly and difficult to repair.

Another problem with overloading: In case of accident, the insurance company will deny the damage claims or life claims if the car was found overloaded.

In case of traffic violations, the cops will slap additional fine for overloading.

[harikrishna.te]

When the suspension is overloaded, the suspension travel is reduced from its intended design value. If the driver chooses to drive over a bump/pothole without slowing down, the bump stop will engage quickly and will take all the load.

After the bump stop compresses to its full extent, the load will directly transmit to the frame and can cause damage.

Overloading can also affect steering characteristics, especially at high speeds. Handling will be adversely affected (can be very dangerous too) if one side is loaded disproportionately. The vehicle may swerve and may become very difficult to control.

In commercial vehicles, the effect of overloading is more pronounced on tyre life and suspension joints. I would expect cars to react much more sensitively to overload because of their lower laden-to-unladen ratio than trucks.

[speedmiester]

On the topic of overloading, here is a video which shows why one should respect the payload capacity of a car.

https://jalopnik.com/watch-a-boulder...oad-1826802068

https://www.youtube.com/watch?v=r-GjqRI71zw

[amitoj]

Originally Posted by speedmiester

On the topic of overloading, here is a video which shows why one should respect the payload capacity of a car.

I saw this video yesterday and it seems to have come straight out of a cartoon movie!
There is interesting discussion in the article, btw, about how much these stones can actually weigh.