Did not intend to make you defensive with my last reply, but since you did, maybe I should point out something to you. The warranty that you originally supplied from Michelin and I questioned, is not a road hazard warranty at all. This warranty only covers tread life and manufacturers defects. I am surprised that due to your claim that you were trained by Michelin and also held the position of tire service manager that you did not know that. Michelin does not warrant its tires for road hazards - that warranty is sometimes offered by the tire shop, but not Michelin.
Tires which become unserviceable due to:
The addition of liquid, solid or gaseous materials other than air, nitrogen or carbon dioxide, The tire became "unserviceable due to" the "addition of liquid" ( adding fix a flat ).That is the fact and proof you are asking. They sell it to make money.
Tags: fix, flat, Hazard, road, voids, warranty