Stormin Mormon wrote:
I didn't see anything useful at that site. What was I
supposed to see?


The auto manufacturers have a higher standard for additives than the
EPA does because of fuel injectors crudding up and intake valve
problems. The Top Tier gas is supposed to help take care of these
problems. Some of the Chevy V8's injectors are particularly bad about
crudding up. Intake valves also have carbon build up on the back side
and that causes problems.