Shaking Vehicle while filling petrol - will it help?

kdeepakk · 11th July 2007, 12:42

Hello All;

Whenever i visit a petrol bunk, i always see one or the other shaking his vehicle & filing the petrol. People shake their vehicles when they are filling full tank. Once i spoke to one person who was doin it, he told me u can fill more fuel by doing it

. I told boss its fuel, its liquid how can you shake the vehicle & make more space inside the tank. The person dint have any answer....

Does this work??? Can you really fill in more fuel by shaking the vehicle??

If it works by shaking vehicle u can fill more fuel........then think of Lorry & bus drivers..shaking their vehicles....

Regards
Deeps

paras211 · 11th July 2007, 13:32

i guess it might be helping the fuel to move quicker to the fuel tank from where u put it in

HSV · 11th July 2007, 13:35

Just topped my car to a full tank last night. The bloke at the pump did shake the car and he did get a little more fuel in!

I guess it may have something to do with the shape of the fuel inlet pipe and they way it connects to the tank... Dunno (DUH)!

ramki067 · 11th July 2007, 13:41

Shaking the vehicle to put more fuel? lol
I remember when i visit grinding shop u need to shake the utensil to spread the grinded part evenly. How is it applicable to a fluid...

adityapd · 11th July 2007, 13:42

well..the answer to this is really simple...they shanke the vehicle to remove air if any trapped in the fuel tank..thereby making space for slightly more fuel

~A

SRK · 11th July 2007, 13:46

Same principle the Doctor uses to remove the air inside the injections..He just gives gentle taps..We Shake em..haha!!

Personally I feel sometimes the fuel would just come out..

DieselFan · 11th July 2007, 13:48

It is not at all advisable to fill in the fuel till the brim of the fuel tank for the following reasons -

1. Exapnsion of Fuel when parked in a hot spot and overflow of the same
2. spillage from the fuel cap if the cap is not closed airtight.

reason 1 is most common. Not only you loose fuel but you have an ugly fuel stain on your car that needs to be cleaned. It is worse if it is Diesel.

You do not achieve anything by an extra 0.5 litre of fuel. so avoid top offs till the brim.

wanderlust · 11th July 2007, 13:51

What happens is that there are quite a few air pockets that get trapped in the tank while you fill fuel. Shaking the vehicle helps the air escape and you can fill in more fuel.

I had read an article in BSM recently that before their road tests they back up to lift one rear wheel (closest to the fuel tank) on an inclined surface to full in more fuel.

paras211 · 11th July 2007, 13:53

mostly the drivers of sumo s n qualis are engaged in these visually entertaning act its fun if ur inside the car too

rishibravo · 11th July 2007, 13:54

I think the gush of the fuel while filling creates bubbles and by shaking the vehicle the air trapped in the bubbles escapes faster.. I might be wrong though..just a guess

dockap · 11th July 2007, 13:59

they shake the car to remove the trapped pockets of air inside and the amount of extra fuel u can fill depends on the amount of air trapped inside

for eg my optra magnum can fill in 12 to 13 liters of fuel after the auto shutoff

ravibhat · 11th July 2007, 14:08

Yes thats right, When I tried this shaking technique with my Innove I could fill 3 ltr extra, Air pockets will open up and fuel goes in by shaking.

I always use autocut although, only very rarely I top up.

Regards,

Ravi.

Nimz · 11th July 2007, 14:10

Quote:

Originally Posted by dockap

they shake the car to remove the trapped pockets of air inside and the amount of extra fuel u can fill depends on the amount of air trapped inside

for eg my optra magnum can fill in 12 to 13 liters of fuel after the auto shutoff

12-13 litres??

Really or was it a typo?

nitrous · 11th July 2007, 14:10

Autocar India uses a small ramp to tilt the vehicle a bit to fill more fuel.
Although, a small shake is good. Vigorous shaking and/or overfilling will only make U lose more fuel.

hvkumar · 11th July 2007, 14:14

In my case, after auto shut off, I can push in at least 5 litres if I do the shake routine. There is also one more reason for the shaing - fuel tanks are often mis shaped which means there may be small compartments where the fuel may not enter unless you agitate the vehicle/ tank a bit.

11th July 2007, 12:42	#1
kdeepakk BHPian Join Date: Dec 2006 Location: Bangalore Posts: 272 Thanked: 103 Times View My Garage	Shaking Vehicle while filling petrol - will it help? Hello All; Whenever i visit a petrol bunk, i always see one or the other shaking his vehicle & filing the petrol. People shake their vehicles when they are filling full tank. Once i spoke to one person who was doin it, he told me u can fill more fuel by doing it . I told boss its fuel, its liquid how can you shake the vehicle & make more space inside the tank. The person dint have any answer.... Does this work??? Can you really fill in more fuel by shaking the vehicle?? If it works by shaking vehicle u can fill more fuel........then think of Lorry & bus drivers..shaking their vehicles.... Regards Deeps
	() Thanks

11th July 2007, 13:32	#2
paras211 BHPian Join Date: Nov 2006 Location: mumbai Posts: 660 Thanked: 176 Times View My Garage	i guess it might be helping the fuel to move quicker to the fuel tank from where u put it in
	() Thanks

11th July 2007, 13:35	#3
HSV BHPian Join Date: Mar 2007 Location: New Delhi Posts: 327 Thanked: Once	Just topped my car to a full tank last night. The bloke at the pump did shake the car and he did get a little more fuel in! I guess it may have something to do with the shape of the fuel inlet pipe and they way it connects to the tank... Dunno (DUH)!
	() Thanks

11th July 2007, 13:41	#4
ramki067 BHPian Join Date: Sep 2006 Location: BANGALORE Posts: 616 Thanked: 36 Times View My Garage	Shaking the vehicle to put more fuel? lol I remember when i visit grinding shop u need to shake the utensil to spread the grinded part evenly. How is it applicable to a fluid...
	() Thanks

11th July 2007, 13:42	#5
adityapd BHPian Join Date: Feb 2004 Location: Mumbai, Philadelphia Posts: 288 Thanked: 9 Times View My Garage	well..the answer to this is really simple...they shanke the vehicle to remove air if any trapped in the fuel tank..thereby making space for slightly more fuel ~A
	() Thanks

11th July 2007, 13:46	#6
SRK Senior - BHPian Join Date: Sep 2005 Location: Mumbai Posts: 1,206 Thanked: 536 Times	Same principle the Doctor uses to remove the air inside the injections..He just gives gentle taps..We Shake em..haha!! Personally I feel sometimes the fuel would just come out..
	() Thanks

11th July 2007, 13:48	#7
DieselFan Senior - BHPian Join Date: Mar 2007 Location: Bangalore Posts: 1,584 Thanked: 260 Times	It is not at all advisable to fill in the fuel till the brim of the fuel tank for the following reasons - 1. Exapnsion of Fuel when parked in a hot spot and overflow of the same 2. spillage from the fuel cap if the cap is not closed airtight. reason 1 is most common. Not only you loose fuel but you have an ugly fuel stain on your car that needs to be cleaned. It is worse if it is Diesel. You do not achieve anything by an extra 0.5 litre of fuel. so avoid top offs till the brim.
	() Thanks

11th July 2007, 13:51	#8
wanderlust BHPian Join Date: Dec 2006 Location: Bangalore Posts: 147 Thanked: 172 Times	What happens is that there are quite a few air pockets that get trapped in the tank while you fill fuel. Shaking the vehicle helps the air escape and you can fill in more fuel. I had read an article in BSM recently that before their road tests they back up to lift one rear wheel (closest to the fuel tank) on an inclined surface to full in more fuel.
	() Thanks

11th July 2007, 13:53	#9
paras211 BHPian Join Date: Nov 2006 Location: mumbai Posts: 660 Thanked: 176 Times View My Garage	mostly the drivers of sumo s n qualis are engaged in these visually entertaning act its fun if ur inside the car too
	() Thanks

11th July 2007, 13:54	#10
rishibravo BHPian Join Date: Jul 2006 Location: New Delhi Posts: 579 Thanked: 12 Times View My Garage	I think the gush of the fuel while filling creates bubbles and by shaking the vehicle the air trapped in the bubbles escapes faster.. I might be wrong though..just a guess
	() Thanks

11th July 2007, 13:59	#11
dockap BHPian Join Date: Jun 2007 Location: Mangalore Posts: 873 Thanked: 518 Times View My Garage	they shake the car to remove the trapped pockets of air inside and the amount of extra fuel u can fill depends on the amount of air trapped inside for eg my optra magnum can fill in 12 to 13 liters of fuel after the auto shutoff
	() Thanks

11th July 2007, 14:08	#12
ravibhat Senior - BHPian Join Date: Jul 2006 Location: Bangalore Posts: 2,250 Thanked: 37 Times View My Garage	Yes thats right, When I tried this shaking technique with my Innove I could fill 3 ltr extra, Air pockets will open up and fuel goes in by shaking. I always use autocut although, only very rarely I top up. Regards, Ravi. Last edited by ravibhat : 11th July 2007 at 14:18.
	() Thanks

11th July 2007, 14:10	#14
nitrous Senior - BHPian Join Date: May 2004 Location: UAE/Lon/Madras Posts: 6,965 Thanked: 333 Times View My Garage	Autocar India uses a small ramp to tilt the vehicle a bit to fill more fuel. Although, a small shake is good. Vigorous shaking and/or overfilling will only make U lose more fuel.
	() Thanks

11th July 2007, 14:14	#15
hvkumar Senior - BHPian Join Date: Nov 2006 Location: Mumbai Posts: 7,369 Thanked: 3,466 Times	In my case, after auto shut off, I can push in at least 5 litres if I do the shake routine. There is also one more reason for the shaing - fuel tanks are often mis shaped which means there may be small compartments where the fuel may not enter unless you agitate the vehicle/ tank a bit.
	() Thanks