He said: “It’s almost like paying for eight gallons but giving between six and seven.” He said: “See that white foam, like it’s tap water? This is gaseous fuel, which means if you pump eight gallons, you’ll probably get six realistically, that’s not air, it’s a solid liquid. “It’s like shaking a beer can and pouring a beer. “A quick fix if this problem occurs, especially with diesel, is a funnel. READ MORE: Major new driving laws to be introduced in July will massively affect all UK drivers “So is that why my gas mileage seems to be so much less?” asked another. One user wrote: “This makes so much sense because I was telling my husband it seems like my gas doesn’t last as long either! That’s why, right?” Another suggested: “Yes. feed it slowly. this is the best option to get your money’s worth.” However, others were that some fuel pumps are not working properly. Someone said: “Calibrating fuel pumps as part of my job, that’s incorrect information.” The Government regulates fuel pumps under the Weights and Measures Act 1985. The equipment is checked by a qualified officer during routine inspections for accuracy. This is done by pouring 20 litres, measuring it and then measuring it again when it reaches the standard UK fuel temperature of 15 C. The change in level is measured and must be within an allowable margin of error. The law means similar tests are carried out to assess the accuracy of other equipment such as Post Office scales, pub optics and airport weighing scales. If you believe the petrol pump is inaccurate, report the matter to the local Trading Standards department at your local council, who should investigate. Remember to remove the details of the gas station you visited and the pump in question.