Filling Fuel up to The Last Drop

Am I the only titearse that fills their car up until it literally can’t take in anymore, especially when fuel prices are at their potential lowest and are possibly about to jump up by up to 30c/L?

I’ve heard and read varying advice that this behavior could be harmful to the vehicle in some way or could even be dangerous.

Thoughts ?

Comments

  • +73

    Have you considered that maximising the fuel load adds weight in the car which means you actually spend more fuel lugging it around? Tightarse paradox has been created.

    • +25

      Only if I actually drive my car.

      • +5

        Then why bother filling up to the last drop?

        • +29

          My poor attempt at humor

        • +11

          Der… to feel more fuel-filled.

          Only those who have got too far truly know how far they can go.

    • +2

      A real variable as most boots are full of K Rap which also adds to the load being driven around.

    • +7

      If we are gonna start worrying about carting excess weight around, need to ditch the wife, and the beer belly…..

      • +21

        Thanks for the tip. Just booted the wife and kids out of the car on the freeway this morning. Getting at least and extra 0.1km to the litre.

    • +1

      Good point.
      However, I reckon that doing 1/2 tank at the bottom of the cycle and doing 1/2 tank at the top of the cycle and getting say 15kmpl vs full tank at the bottom for 14kmpl is the better economic option.

      A litre of petrol is about 750grams, so just emptying the boot from junk and clearing all the trash from the car will negate the couple of extra kgs that the fuel adds on.

      When mine clicks (diesel), I can still put in another 2 litres after I wait for a couple of minutes for the foam to die down.

      • +6

        Also, only driving down hill can save you loads on fuel!

        It's way more efficient than uphill driving!

      • +1

        I highly doubt even an extra 50kg would increase fuel consumption in a 1400kg + vehicle

        • +1

          Every single kg does make a difference. 50kg does increase consumption, but you’re unlikely to notice it with other variations.

          Removing unnecessary weight is a simple way to reduce consumption by a little.

          • @Euphemistic: That's why I dropped my weight by 5kg. Spent less on food and also saved on fuel. Winning.

            Sort of /s

            • @skittlebrau: I changed the interior lights to led so they use less power. Less load on the alternator so less fuel used.

    • +5

      maximising the fuel load adds weight in the car

      This is known as the "Lightarse/Tightarse Paradox".

  • +27

    Use the 7/11 App, then you can lock in the cheapest price for another week.

    Filling past the first click can be bad for the evap system.

    • -1

      this

    • +2

      Hmm, 7-Eleven is never the cheapest for us. Just checked fuel price lock for diesel and price was 179.9. PetrolSpy shows cheapest at a nearby servo as 167.5.

      • +15

        the trick is to not restrict your available fuel price locks to just your local area. Using various programs, you can "fake" the gps signal on your phone to any area in australia and fuel lock to the cheapest available for 7-11 nationally. I just checked and you can fuel lock diesel for 164.9 at yagoona in NSW.

        https://www.ozbargain.com.au/node/678629

        • +1

          You should fire up the chopper me is thinking.

    • Our local 7/11 charging $2.07 past couple of days when other servos nearby are under $1.60. They can keep their app.

      • +4

        The 7/11 app grabs to lowest price from the nearest 5 stores. My local isn't always great either, but the next town up the highway is routinely just about the cheapest in the state. I lock in the cheapest price from the nearest 5, or from when I'm driving around and see something even better in that region on petrolspy I lock in that price for the next week if I'm on a full tank.

    • +5

      Not every state has 7/11.

    • +1

      You have a good source for this?
      Genuine question. I would love to learn how it works.

      Edit, got the links from down below.

  • +4

    why not buy 100 jerry cans and fill them up when its cheap and store them in a tin shed in direct sun light in the back yard????

    kaboooooom

    • +17

      lights cigarette
      I am in flavour country

      • +8

        It's a big country.

    • +7

      My old boss used to do this. Had several hundred gallon drums in his garage, and filled when it was cheap. He was a South African prepper type, and also hoarded cash and gold. Just one errant flame and all his worldly possessions would be up in smoke.

      • +2

        Not the gold

      • But fuel degrades? Like within a year.

        • Not in the Walking Dead it doesn't - many, many years later and they're still driving cars around.

    • +9

      When you store fuel, water slowly absorbs into it. I wouldn't store it more than 6 months for example. People also say the octane level drops but not sure about that.

      • +5

        Where does the water come from if the container is sealed and there is minimal or no moisture-carrying air gap at top?

        This is however feasible for a fuel tank that vents to the atmosphere.

        There are other detrimental effects that cause fuel to go off (can be offset with fuel preserver additives) but absorbing moisture from a very limited available quantity of air volume is not one.

        • yeah good point made, the issue could only happen to fuel in the tank.. I'll look it up

    • What best versatile jerrycan

    • SuperWog - Cheap Petrol episode

  • +35

    I thought you were talking about those people who when they fill up, they twist and lift the hose to get every last drop out of the pump

    • +12

      … Shake it once, that's fine
      Shake it twice, that's okay
      Shake it three times …

      • +3

        Shake it 15 times, you likely have post micturition incontinence

    • +10

      I used to love watching people do that when I worked in a petrol station. It doesn't do anything, but I didn't have the heart to tell them this (also I liked the entertainment).

      Right up there with the people trying to manually get it to $10.02 by squeezing the handle just a little bit when it got to $10 and going to $10.03. Some would argue that they were being ripped off when I told them to pay the 5c.

      • +1

        I have a diesel and only have to do the twist and shake because drips don't evaporate like petrol.

        Unfortunately, oftentimes I get drips from around the collar itself rather than dripping from the nozzle. Drips from the collar are even messier.

        • Why don't drips evaporate?

          • +1

            @capslock janitor: Diesel is just oilier and heavier than petrol. While it does actually evaporate, it does so at a much slower rate.

      • +1

        it's does do something but very little

        lets say it clicks and then you wait few seconds before pulling the gun out face down / twisting the hose

        bet ya some will spill on the ground… those few precious drops are what those people are trying to get

        • There will maybe be a few drops in the nozzle itself. You’re not getting anything out of the hose itself and lifting/twisting it does absolutely nothing.

          • +1

            @freefall101: depends how the hose is configured

            if it is those really long ones which rare these days, you get something

            if it is those short ones that you can't even use it on the wrong side then probably nada

            I position the hose so that it flows from top to bottom without bending upwards

            • +1

              @Poor Ass: Unless it was made in the 60s or something all the hoses have a valve that cuts it off entirely and the whole thing is pressurised so the fuel flows the same whether it's going up, down or whatever. As mentioned, there might be a few drops in the nozzle itself, that's all you're getting. If the pump isn't running there's no pressure and simply nothing will come through the hose.

              However please, continue to do what you do, it provides good entertainment to the staff.

              • +1

                @freefall101: Every drop counts 😁

                • +4

                  @Poor Ass: yep. I don't care where those drops are coming from, they're better in my tank than on my shoes.

                  But then, I also get every crumb from a chip packet, why should the most flavoursome bits go in the trash?

              • +3

                @freefall101: I couldn’t care about 4ml of petrol going into my tank. I just don’t want it to drip on the paint.

      • I haven't used Cash in so long, I literally forgot that was a thing!

        It was one of those unique Australian things that I liked when I moved from the UK :-)

      • +1

        Not entirely true. Depends on how you fill. If you fill manually the flow is stopped at the nozzle and what’s in the hose stays in the hose, no amount of jiggling will give you anything extra. However, if you use a preset the shut off valve is in the bowser and the nozzle stays open as long as you hold it open meaning you can lift and drain the contents of the hose.

        You can argue that the fuel is always measured in the bowser so makes no difference. But that means we are always ripped off the contents of the hose. Then again, it might depend if the last person drained the hose, because if you’re getting theirs then it’s even.

        Don’t you love to overthink completely useless things 🙂

        • +3

          Sorry to burst your bubble but the actual poppet in the fuel nozzle stops the flow with the lever activated whether the preset is used or not. If it didn’t, when you again first used the fuel bowser after someone had used the preset it would count up to fill the hose (yes, not entirely because of the supposed air in the hose which would be now compressed). The hose is always full of product because the nozzles require a set amount of pressure to open them. I work in the industry and fix bowsers for a living.

    • +18

      I do this because when I don't, I inevitably spill those drops on my paint.

      • Is it really bad for paint

        • Petrol is a pretty good solvent, i'd be surprised if it didn't dissolve wax as much as grime.

        • Yes, Diesel in particular

      • you don't need to do anything with the hose itself. Just wait a few seconds after you finish, give it a bit of a shake and pull it out slowly.

        • +14

          We’re still talking about fuel right?

    • +1

      You have paid for it and the fuel dribbles on the paint around the filler don't help

    • +3

      I do this but only so that the drips don't come out as I remove the hose and spill down the pain on the side of my car. It's 100% for that and not trying to get more mileage.

      • Me too mate, me too. Don't want to ruin my paint work.

        • Same thing in the toilet, always pesky leftover drips

    • +1

      So what is the title post really about??

    • if you brim it to the top of the filler it just spills out the first turn you take

    • I always do this, because the one time I didn't I ended up spilling some on the ground, might as well get those last few drops I payed for instead of oiling the ground. But I also fill the car right up until it clicks as well.

  • +19
    • It can damage your EVAP system (Evaporative Emission Control System).

      Note it saysmight 'the EVAP system might be overloaded with fuel and emit vapors in the atmosphere.'

  • +1

    If you only need to fill up every week you can generally time the low point in the price cycle. At least you can in WA.

    • +8

      In Melbourne the price cycle lasts up to 2 months. Even with limited driving you need a few jerry cans to beat it.

      • Geez perth really is the outlier.

        I wonder what dictates the cycle then

        • +7

          Geez perth really is the outlier.

          You can read more about it here: https://www.accc.gov.au/consumers/petrol-and-fuel/petrol-pri…

          To quote the article:

          In 2022 the average duration of price cycles in Sydney, Melbourne and Brisbane was around 5 weeks, and in Adelaide it was just over 2 weeks. Perth currently has regular weekly price cycles.

          So basically, yes, you are correct!

        • +9

          Corporate gangster-ism and a compromised ACCC sleeping at the wheel?
          Fuel cartels control our economy,period

          • +7

            @Protractor:

            compromised ACCC sleeping at the wheel

            I worked at the ACCC during the initial fuel pricing investigation and actually did some of the modelling associated with that original report.

            This is a bit of an unfair categorisation. The ACCC enforces the Competition Act, and doesn't actually make the rules.

            If we require additional regulation on the fuel retail sector (which I agree we do), that's a job for parliament, not the ACCC. Once laws are passed, the ACCC can enforce those laws and ensure retailers are following the rules.

            The people who are compromised in this situation are the politicians, not the ACCC.

            • +5

              @p1 ama: The ACCC can ask for the laws and has the opportunity.In fact it has the same dust covering that opportunity, it had from day one.I talked to some ACCC folk at a field day about this issue.
              They were embarrassed when asked about the fuel price scamming .
              Fels was always asking for more sensible regs and power around multiple big picture issues.
              He got many of them.
              Which over industry gets to price cycle and exploit it easily at Xmas and Easter holidays etc?
              Fuelwatch was a smokescreen to allow the ACCC to dodge asking the question (again) and to imitate govt
              So tell me this . Did YOU ever hear the ACCC say they were ever refused greater power, that they sought it, that they were denied it?
              I agree that the legislation comes from govt. But the ACCC has the power to ask for the power it needs.
              Other than the fuel watch joke, what's changed?>
              https://www.accc.gov.au/media-release/federal-court-finds-pe…

              "Cartels
              It’s illegal for businesses to agree to act together in a cartel instead of competing.
              Cartels cheat consumers and other businesses. They restrict healthy economic growth, drive up prices and reduce innovation and investment.
              Cartels attempt to increase members’ profits while maintaining the illusion of competition.
              There are 4 forms of cartel activity. These are price fixing, sharing markets, rigging bids and controlling output.
              Individuals and businesses involved in a cartel risk heavy criminal and civil penalties. This includes jail terms.
              Anyone can report cartel activity to the ACCC."

              • +1

                @Protractor: You seem to be misunderstanding the role of the ACCC. The ACCC does not have the power to decide what the law should be, it can only enforce the laws as they are.

                If the ACCC is not enforcing the strict letter of the law, then the matter generally goes to court, where the judge will decide based on the letter of the law.

                They were embarrassed when asked about the fuel price scamming .

                This is besides the point, their embarassment does not change the law.

                Which over industry gets to price cycle and exploit it easily at Xmas and Easter holidays etc?

                Again, this isn't a matter for the ACCC. Parliament needs to pass laws to ban this sort of practice before the ACCC can do anything.

                So tell me this . Did YOU ever hear the ACCC say they were ever refused greater power, that they sought it, that they were denied it?

                They ACCC does not ask for "power". It's an independent statutory body that does exactly what is asked of it in the Act.

                If you think that the ACCC can just ask for more "power", then you're seriously delusional.

                I agree that the legislation comes from govt. But the ACCC has the power to ask for the power it needs.

                It's not about power, it's about what the law says, because that's what will stand in court.

                Believe me, most who work at the ACCC want to see more action. You don't give up your life to become a competition economist to do nothing and see no change. It's neither a glamorous, easy nor well paid job.

                It's great you're passionate about it. Have you written to your local MP?

                • @p1 ama: Did you read the link? Its almost 20 years ago. They have an empty scrotum today
                  Write to local member?

                  Yes I exercise my Cert 4 in futility regularly. I wish I could retire as a full time ACCC employee. I could do with the sleep

                • @p1 ama: Found the ACCC employee.

      • Not really….more like 2 to 3 weeks, depending if there is a long weekend / school holidays on the horizon

    • +1

      Unfortunately Perth is the only city with weekly price cycles. See the ACCC site (a very useful site btw)

      In 2022 the average duration of price cycles in Sydney, Melbourne and Brisbane was around 5 weeks, and in Adelaide it was just over 2 weeks. Perth currently has regular weekly price cycles.

  • 7/11 fuel lock and Costco nearby.
    Pretty much removes all care about fuel price fluctuations or cycles

    The difference in savings between filling up one extra click, sometimes you need to put money saving into perspective/reality :)

  • +12

    I lift up the hose to get the last few mils out of the pump.

    • +2

      The trigger and valve is at the end of the hose. How does lifting the hose get any more fuel out?

      • +1

        It's a placebo effect.

        • +5

          Holy s*** just saw you’re back @Muzeeb WB matey

      • +3

        for the local servo pump it just keeps dripping even after lifted the trigger just like after going toilet , couldn't wait for the awkward moment to end

        • I love it when couch experts get rekt by real life experience.

      • The fuel is in the pipe and already measured as being dispensed.

        • +5

          The pipe is always full.

      • -1

        If you have programmed the pump to shut-off at $50, you can drain the hose fuel as the internal valve has stopped the fuel flow.

        It isn't a lot but obviously makes some people feel better about the exorbitant price we pay

        • Not how the nozzles work. As soon as the pump shuts off, so does the nozzle. Pressure in the system is what operates the nozzle valve. No pressure, no open.

          You might get 1 or 2 drops, which would be a fraction of 1cc of fluid. To give you an idea, 1cc of fuel at $1.85 saves you $0.00185… and 2 drops isnt even 1cc.

          A 3/4” hose that is 3m from nozzle to pump (even if you could get allllll the fuel out of the hose) has a volume of 0.85 litre.

    • +1

      I do this to avoid petrol on my shoes.

  • +10

    -F$#k your evap system
    -Cause overflows and leaks, especially at corners/roundabouts adjacent to the servo - ride a motorcycle and find out how slippery these are just as it starts to rain because of idiots over-filling their fuel tanks.

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