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Originally Posted by Arkansas3
does adding SG extend durability at all? i put two coats of SG (after putting on one coat of AIO) on my hood, trunk and roof and i want them to last.
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It supposedly extends the protection to one year vs. approx 6 months with AIO. I apply AIO every Spring and Fall so just applying AIO works for me. I did apply SG to the wheels, exhaust tips, exterior mirrors, headlights, and tailights.