Oil change on and off

[Mazsive]

Well I've done some checks. It needed oil as pointed out, so refilled. Now I opened the engine oil cap and I noticed some solid oil but doesn't look like sludge. It looks like build up. Anyway it prevented me from looking all the day down to the engine bay, the oil colour is fine. Not black but healthy.
I'm not sure what that buildup is but it looks like hot milk you boiled and let the skin form but black.

[06YarisRS]

Originally Posted by Mazsive

Well I've done some checks. It needed oil as pointed out, so refilled. Now I opened the engine oil cap and I noticed some solid oil but doesn't look like sludge. It looks like build up. Anyway it prevented me from looking all the day down to the engine bay, the oil colour is fine. Not black but healthy.
I'm not sure what that buildup is but it looks like hot milk you boiled and let the skin form but black.

Pics?

[Nu18F]

Originally Posted by Mazsive

Well I've done some checks. It needed oil as pointed out, so refilled. Now I opened the engine oil cap and I noticed some solid oil but doesn't look like sludge. It looks like build up. Anyway it prevented me from looking all the day down to the engine bay, the oil colour is fine. Not black but healthy.
I'm not sure what that buildup is but it looks like hot milk you boiled and let the skin form but black.

I think you are seeing the deflector plate on top of the cam chain. It gets a bath of oil while running so oil change was likely overrun at some point. It could have been early on or later in miles but if it has heavy varnish cooked on it your PCV valve likely needs changed. A new PCV valve , a switch to an oil like Mobil 5w-30 or 10w-30 High Mileage could lower the oil burning. Clean air filter's help as well. Myself, I wouldn't use an engine flush that's for sure.

Here's that plate inside my engine after ten years.