new vrt top

I new a new black top on the vert ($900 ) on my old GTO vert I used Armorall (sp?) and it looks greasy, ran all over the paint when it rained, and wore out fast despite the Armorall. How you you protect your investment??

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94 Convertable 5.0, K&N, Flow Masters/CAT backs, Power Slot brakes, Under Drives, B&M Shift+, Xeon lights