Suspect this is a snake oil kind of issue but my shop just got some in.
They claim :
Better mileage
Longer wear
Less need to check pressure [big one for me]
Less rust and corrosion.
I let them do the tires as they did it for free and I get to be a "test case".
They claim :
Better mileage
Longer wear
Less need to check pressure [big one for me]
Less rust and corrosion.
I let them do the tires as they did it for free and I get to be a "test case".