1.   Apply an oil-based exterior primer and finish with a latex house paint or an oil-based indoor-outdoor enamel.

2.   Anyway, two coats of a latex house paint should last longer than three years.

3.   Apply two thin coats of a latex house paint or two thin coats of a solid color latex stain.

4.   Apply a latex exterior primer and finish with one or two thin coats of a latex house or trim paint.

5.   Apply two thin coats of a latex house paint, well brushed on.

6.   After that, apply a coat of exterior primer, followed by one or two coats of exterior latex house paint.

7.   Allow the surface to dry, then paint with two coats of a good quality acrylic latex house paint recommended for use on aluminum siding.

8.   Finish with one or two coats of a latex house or trim paint.

9.   I primed everything with an oil-based primer, and finished with a latex house paint.

10.   I believe most painters and most specialists will recommend latex house paint over oil.