A dream of buying or selling gasoline is a sign of prosperity ahead, but there may be a few bumps in the road before you get what you want. Running out of gasoline is a dream of contrary, implying a rush of energy and inspiration in whatever activity means the most to you.
If you’re not sure what that is, look to other symbols in the dream.... Dream Explanations of Astro Center
Dreams of gas symbolize the fuel and energy you need to participate in life. You are activating your drive for success, seeking sustenance and power. Alternatively, this dream may be showing you that you are attachment to an old paradigm to get your juice for life that has diminishing returns. You may be stuck in the past in a relationship that is running on fumes and living in the dark ages. See Fuel.... Strangest Dream Explanations
Gasoline is usually a good omen: it evidences the strength and energy acquired after some difficulties. However, it may have a pessimistic tone if you see an empty tank because it indicates that you do not feel motivated to continue the daily struggle. The gas station is a sign that you need a break to reflect on your future.... The Big Dictionary of Dreams
Gasoline is a highly flammable material that is cultivated primarily for fueling many of the vehicles we use to move about in life.
The essence of its symbolic meaning connects to its combustibility and not necessarily its productive use. In an engine, gas is symbolic of the power that creates movement and power that can be harnessed. Outside of an engine, it represents the potential for such power that comes with dangerous consequences if it is not used with respect. Are you using your potential well, or are you in danger of experiencing an unexpected explosion by misusing your potential?... Complete Dictionary of Dreams