Honda Civic R18Z engine dirt/sludge noticed

[DmitryA]

Hi,

I'm not a professional mechanic and have no idea what is normal inside the engine and what is not. I checked recently what is inside the valve cover of my Civic simply looking through the oil fill hole and noticed some dirt/sludge on the rocker arm/spring/what is it called?

Do you guys think it is normal or are there some issues with the oil? I'm doing roughly 4K miles OCI. There was Mobil 1 0w30 ESP LV and then Castrol 0w30 A3/B4 European oil. The car is ~20K miles.

Thanks!

 

[BMWTurboDzl]

It's fine.

 

[JavierH19]

that's basically nothing so don't worry. i wouldn't spend extra on a 0w-30 for it.

 

[Bottom_Feeder]

It's totaled.

 

[slacktide_bitog]

Welcome to BITOG

That looks great. Nothing to worry about at all

 

[ad244]

What does the bottom of the oil cap look like?

 

[DmitryA]

Thanks to everybody for the replies!

I googled a bit and seems that this R18Z4 engine disables 4 intake valves on low RPMs. I wonder if it can be the case. The disabled valve is not moving thus oil stays there and burns cuz metal is hot? Hope it is not a super silly idea.

 

[DmitryA]

What does the bottom of the oil cap look like?

Looks just clean with fresh oil and no traces of sludge.

 

[mightymousetech]

Thanks to everybody for the replies!

I googled a bit and seems that this R18Z4 engine disables 4 intake valves on low RPMs. I wonder if it can be the case. The disabled valve is not moving thus oil stays there and burns cuz metal is hot? Hope it is not a super silly idea.

With VTEC-E all the intake valves open at low RPM, 4 operate as normal and the other four just barely open. Nothing will pool on them.

 

[CarfriendXX]

My honda Civic 1.8 from 2008 Looks so, too. It will be fine since 2008 und 385000 Kilometers.

 

[brages]

People on here often post extremely clean under-valve-cover pics. These pictures are posted because they are exceptional.

Things don't look too bad from what I can see in the pics.