tankful

noun

Etymology: From tank + -ful.

1. The amount (usually of a fluid) that will fill a tank.

   “Each tankful of leaded gasoline causes an increasingly thick coating of lead to build up on the catalyst.”

   “1988 July, advertisement, Field & Stream, page 57, Regane^® Premiumᵀᴹ is a gas treatment so superior, it′ll work through eleven tankfuls-not just one.”