Jim Weir wrote:

In a 152 you have to burn 100(LL) at $2.50 a gallon for a total cost of $7500.

Or you can get an auto gas STC from either Petersen or the EAA. The EAA page notes
that modifications to the engine are required; even so, it's going to be cheaper
than running avgas.

George Patterson
Love, n.: A form of temporary insanity afflicting the young. It is curable
either by marriage or by removal of the afflicted from the circumstances
under which he incurred the condition. It is sometimes fatal, but more
often to the physician than to the patient.