The amount (usually of a fluid) that will fill a tank.(noun)
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Use "tankful" in a sentence
"The cost of that one tankful is what it would have cost for a one-way bus ticket to my destination."
""The meeting will also seek solution to the issue of persistent sour water management at Shell's Ughelli facility (an effluent from the production process) which the WRPC has been grappling with after being laden with a 'tankful' from SPDC six months ago," he added."
"Car pooling would finally have a chance, with a third tankful costing $270 this week."