Join Date: Jun 2008
Location: northern Minnesota
It looks to me like any or all of several things may be contributing to his coat quality. First, is he shedding his undercoat? Clumping of shedding hair can cause that appearance. Second, a lower quality diet can cause poor coat quality. Thirdly, dehydration can cause the coat to become greasy and clumpy. If you're feeding him kibble, I recommend you switch to exclusively canned food for him, and mix water into his canned food to make it a "soup" that he can lap up. That'll increase his hydration and should help with his coat.
If he were an older cat, I'd recommend having his thyroid tested, but it would be rare for such a young cat to have hyperthyroidism.