In Price v. Shell Oil Co. (1970) 2 Cal.3d 245, the court took pains to point out that defendant "was engaged in an organized and continuing operation" ( id., at pp. 254-255) of leasing a particular model of tank truck "'built to a set of standard plans of Shell Oil Company'" ( id., at p. 255, fn. 9) so that the lease of that particular equipment "was not an isolated or occasional transaction" ( id., at p. 255).