Section 526.121 - Pricing restrictions; separation of gasolines(1) The posting at retail service stations of a different price for the same grade of gasoline dispensed from one pump than from another pump supplied from a common storage at the same service station when represented to be and is sold as the same quality of gasoline is unlawful.(2) This section shall not be construed to prohibit a price differential between a cash sale and a credit sale of the same grade of gasoline or between self-service pumps and attendant-controlled pumps supplied from a common storage at the same service station.s. 1, ch. 67-506; s. 7, ch. 74-162; s. 1, ch. 82-26.