Latex Flat Paint Over Kilz Original Oil Primer Question

If you have left over paint, or a way to get the color numbers, then prime/paint is ok. Even from the same can of paint, it can be difficult to get a perfect match because the already painted area probably has some fading, yellowing or dirt. If it is a really dead white, you might get better results from just applying a very, very thin coat of primer, brushing out to feather the edges. Even the primer alone might "do" until the whole ceiling needs painting. Most folks don't look at the ceiling much and unless the light is perfect, might just not notice it.

Due to my son starting to make a grilled cheese sandwich and then forgetting it I had smoke damage in the kitchen and used Kilz to cover the area and then was intending to repaint the entire kitchen and dining room ceiling. However, the Kilz did a fantastic job of not only covering, but blending that I just left it. To me the Kilz was a good ceiling paint. You may also be satisfied with the finish. However, I believe I used the latex Kilz, not the oil.