New miracle fuel additive?

["Daniel" <daniel@seaport.net>]

Here is a crazy question.

Some old timer just told me, that do to the earlier car engines being
designed to run on leaded fuel, today's unleaded would damage older car's
valves. OK.

He said that, in his old Toyota pickup he ran 1 gallon of diesel in a full
tank of unleaded once a month or so.  What the heck??

What was he talking about?  Any ideas?

Daniel Beatty
65 1600 #1322
Portland, OR