You need a high speed buffer, like a Milwaukee, of B&D, or something
that polsihes the paint, that spins at about 2000 rpm.

And that Turtle Wax stuff is Ca Ca.

Find an automotive paint supply, and purchase two items.

One, 3-M super duty rubbing compound,

Two, Finesse, to polish out the swirl marks from the compound.

This system works for me.

Later,

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Terry
74 Campmobile (Clementine)
85 GL
86 BMW 325 ES