Astro Van M V6-262 4.3L VIN Z (1994)
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DO NOT polish vehicles unless a surface condition exists that can only be corrected by polishing (see chart).
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If a surface condition does exist, the repair approach should be one of "less is best" (the very least it takes to correct the condition).
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Avoid removing too much clearcoat (whenever possible, use paint gauges before, during, and after polishing).