However, the precise location can vary slightly depending on the exact engine and any modifications. It's best to consult a repair manual specific to your 1992 Cadillac DeVille's engine (4.5L or 4.9L) or use a visual guide like a picture or video online showing the location for that specific engine model. A quick online search for "1992 Cadillac DeVille oil filter location" with images will likely yield helpful results.