It depends on the brand and type of paint you're using. If you get it from an auto paint supply store, the person there should know the reduction, and it should be on the label when they mix it for you.
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2001 Ram 1500 ST QCSB 4x4, 5.2L, Auto,
4.56 Gears, 285/75/16 Cooper Discoverer A/T's
Dark Green (PG8)
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