This is a great product as are most of the Duragloss products I have used. A gallon jug gives you 4 times more than a 321 liter bottle. With this tire fairing, mileage can be highly dependent on the tire manufacturer and how shiny you want your tires to be. I found with 321 or 322. (Same formula, just different sizes) More porous tires absorb more and you may not get a high gloss finish. However, the Michelin Pilot uses Duragloss. Leaves a very good long lasting shine. The tires don't look rusty after riding in the rain. The absence of silicone is also a plus. I think it's debatable but personally I would rather not have covered my whole Porsche in silicone but hey I guess that's just me. I don't see anything special about the wheel arches or the lower quarter panel so this is just a great product. I suggest buying the smaller bottle (321) first if you have never used it just to see if this product is giving you the results you want. If so, be sure to go by the gallon size as it will save you money.
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