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Author Topic: Do you pump slowly, in order to have less air in the gas? Back to Topics
FranklinON

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Ottawa

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Message Posted: Jul 19, 2013 2:24:52 PM

I'm not sure if this is a myth - but I've been told that if you squeeze the pump so the fuel goes at top speed into your car, there's more air going into your tank, and you're paying for air. Conversely, if you have a light touch on the pump trigger, it takes twice as long to fill up but your gas is more 'gas', and less air, with the same overall volume & cost.

I've tried it - and so far all I can see is that I'm getting more volume into the car. Last night I put 42L into my car, which has a 40L tank, and the needle wasn't quite on E yet when I went to fill up.

I wish there were a search function on our forums, so I could find out if this has already been covered. I did check the most recent 5 pages. Does anyone know if pump speed affects the amount of air in your fuel?

REPLIES (newest first) Post a Reply
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hockeybabe25
Sophomore Author Allentown

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Message Posted: Jul 31, 2014 12:36:25 AM

no
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BBF_PFS
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Message Posted: Jul 31, 2014 12:21:56 AM

Now this is funny.
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estroh
Champion Author Indiana

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Message Posted: Jul 31, 2014 12:20:48 AM

nope
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dfp609
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Message Posted: Jul 29, 2014 7:46:37 AM

No, should I?
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stonejd
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Message Posted: Jul 29, 2014 7:36:00 AM

no
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hjl17
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Message Posted: Jul 29, 2014 7:26:59 AM

No
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DDubyu
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Message Posted: Jul 29, 2014 7:23:50 AM

No
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Seekingone
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Message Posted: Jul 29, 2014 7:05:45 AM

no
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wbacon
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Message Posted: Jul 29, 2014 5:56:02 AM

no
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Thumper52
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Message Posted: Jul 29, 2014 5:29:36 AM

No
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estroh
Champion Author Indiana

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Message Posted: Jul 20, 2014 12:02:18 AM

nope
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sh1361
Sophomore Author Birmingham

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Message Posted: Jul 18, 2014 7:28:54 PM

Did Big Foot share this information with you?
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estroh
Champion Author Indiana

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Message Posted: Jul 18, 2014 12:14:23 AM

nope
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nickless
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Message Posted: Jul 15, 2014 1:42:55 AM

no
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DAWGnh
All-Star Author New Hampshire

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Message Posted: Jul 15, 2014 12:24:44 AM

no
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estroh
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Message Posted: Jul 15, 2014 12:20:59 AM

nope
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46chief
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Message Posted: Jul 6, 2014 1:12:28 PM

Yes, sometimes. I don't know if it makes a difference or not.
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contiki
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Message Posted: Jun 2, 2014 6:33:06 AM

Never...........
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John_Doe
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Message Posted: Jun 2, 2014 3:43:48 AM

no
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estroh
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Message Posted: Jun 2, 2014 12:55:40 AM

nope
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contiki
Champion Author Ontario

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Message Posted: May 30, 2014 6:33:39 AM

Never..........
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EvPv
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Message Posted: May 30, 2014 4:41:05 AM

no.
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ScottAdams5
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Message Posted: May 30, 2014 4:16:35 AM

No.
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prkuehn
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Message Posted: May 30, 2014 3:04:03 AM

No
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cistech
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Message Posted: May 29, 2014 11:24:17 PM

no.
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pt88
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Message Posted: May 29, 2014 6:26:49 PM

No
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mrhatandcoat
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Message Posted: May 29, 2014 2:50:29 PM

nope
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NickoliMB
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Message Posted: May 26, 2014 10:54:23 AM

No.
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contiki
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Message Posted: May 26, 2014 6:26:42 AM

No.............
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hjl17
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Message Posted: May 25, 2014 2:17:09 PM

No
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OilerFan
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Message Posted: May 25, 2014 10:16:49 AM

I just air it up and check with the gauge, and if it's too much, I release a little bit of air and check again.
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IFM
Sophomore Author Seattle

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Message Posted: May 25, 2014 9:35:46 AM

No Difference
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Sugarshaneo7
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Message Posted: May 25, 2014 9:19:29 AM

yes
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mawtaow
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Message Posted: May 25, 2014 5:27:44 AM

no
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stonejd
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Message Posted: May 25, 2014 1:09:42 AM

no
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stayathomedad2
Rookie Author Edmonton

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Message Posted: May 25, 2014 1:05:35 AM

no .... especially this past winter ... pump and get out
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estroh
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Message Posted: May 25, 2014 1:00:19 AM

Nope
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DAWGnh
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Message Posted: May 22, 2014 8:31:02 AM

No
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sheba24
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Message Posted: May 22, 2014 7:20:00 AM

No
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RadarIN
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Message Posted: May 22, 2014 7:08:24 AM

no
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contiki
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Message Posted: May 22, 2014 6:31:52 AM

No..............
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CptSteve
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Message Posted: May 9, 2014 3:41:26 PM

Nope. Really no need.
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ace12012
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Message Posted: May 9, 2014 1:32:34 PM

no
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EVBuddy
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Message Posted: May 9, 2014 12:47:32 PM

NO, pump slows on the last 50 cents
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redfish67
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Message Posted: May 9, 2014 12:09:05 PM

no
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MVP1
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Message Posted: May 9, 2014 11:00:21 AM

What comes out of the pump isn't affected by the speed of pumping. What happens at higher pump speeds after it leaves the pump is more air mixes with the fuel in the tank... You get what you pay for.

If you ever pump something like kerosene at high speed you will see it foams, while at low speed it doesn't.
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chrisd552
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Message Posted: May 9, 2014 10:53:22 AM

Nope! Full speed ahead!
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kdanish
All-Star Author Santa Barbara

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Message Posted: May 9, 2014 10:46:32 AM

Yes
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tkawashima
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Message Posted: May 9, 2014 10:18:30 AM

no
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pt88
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Message Posted: May 9, 2014 10:00:09 AM

no
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