Car leather interiors are exposed to UV, temperature swings, and constant friction, so they already operate in a high-stress environment. When harsh chemicals are added on top, the protective finish can soften, discolor, or dry out much faster than expected.
Many all-purpose cleaners are too strong for automotive leather surfaces. They can leave residue, strip finish layers, or create a sticky feel that attracts more dirt. Over time, this makes seats look dull, uneven, and worn long before they should.
A safer approach is to use leather-safe cleaners with soft applicators, avoid soaking seams, and test products on a small hidden area first. If the surface is already damaged, professional cleaning and restoration usually protects the finish better than repeated DIY experiments.