Engineering Explained - Engine oil and valve deposits
- Thread starter StevieC
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Like this guy. This explains why oils like Mobil 1 look dirty early. Vs lesser oils that stay clean on the stick for longer.
Yeah I like the way he explains things... Nothing about this is new to me but the video does a great job summarizing it.
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wemay
Site Donor 2023
I agree. I try to watch all his vids.
1 - 1:30 - Explains where deposits come from.
2:00 onwards - He talks about how engine oil can help.
2:00 onwards - He talks about how engine oil can help.
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For me he just validated my shorter OCIs the manufacturers of my vehicles suggest for severe service . Great video.
Engine oil is taxed in most modern sophisticated engines such as those with TGDI and oil is relatively cheap in comparison. I agree, changing it at shorter intervals is cheap insurance. I would however try to find the best oil that is capable of protecting the engine the best over a long OCI under these conditions for a nice safety margin as it were.
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Originally Posted by MRtv
For me he just validated my shorter OCIs the manufacturers of my vehicles suggest for severe service . Great video.
How's that? My understanding is that it is during the early stages of oil use that the volatile factions boil. Early oil changes would just increase the duration of exposure.
For me he just validated my shorter OCIs the manufacturers of my vehicles suggest for severe service . Great video.
How's that? My understanding is that it is during the early stages of oil use that the volatile factions boil. Early oil changes would just increase the duration of exposure.
Originally Posted by PimTac
Originally Posted by Greggy_D
Did I miss it or did he not explain how certain oils keep valves clean?
It was in the second part where he talked about polar molecules and such.
Thanks. I assumed he was just talking about the pistons and internal engine parts (not valves).
Originally Posted by Greggy_D
Did I miss it or did he not explain how certain oils keep valves clean?
It was in the second part where he talked about polar molecules and such.
Thanks. I assumed he was just talking about the pistons and internal engine parts (not valves).
I think he fails to mention that most valve deposits in DI only engines actually come from the combustion process itself. You can't really do anything about it with what oil you use as long as you're using a decent oil.
Originally Posted by FlyPenFly
I think he fails to mention that most valve deposits in DI only engines actually come from the combustion process itself. You can't really do anything about it with what oil you use as long as you're using a decent oil.
He talks about it at the beginning and has an animation showing the PCV and Exhaust gas fed back into the intake which can both contain oil.
I think he fails to mention that most valve deposits in DI only engines actually come from the combustion process itself. You can't really do anything about it with what oil you use as long as you're using a decent oil.
He talks about it at the beginning and has an animation showing the PCV and Exhaust gas fed back into the intake which can both contain oil.
Originally Posted by StevieC
Originally Posted by FlyPenFly
I think he fails to mention that most valve deposits in DI only engines actually come from the combustion process itself. You can't really do anything about it with what oil you use as long as you're using a decent oil.
He talks about it at the beginning and has an animation showing the PCV and Exhaust gas fed back into the intake which can both contain oil.
Right but I mean, that's where almost all of it comes from, glossing over it because it's an oil company sponsored video is a little misleading.
Originally Posted by FlyPenFly
I think he fails to mention that most valve deposits in DI only engines actually come from the combustion process itself. You can't really do anything about it with what oil you use as long as you're using a decent oil.
He talks about it at the beginning and has an animation showing the PCV and Exhaust gas fed back into the intake which can both contain oil.
Right but I mean, that's where almost all of it comes from, glossing over it because it's an oil company sponsored video is a little misleading.
I don't think so because if their oil is more resistant to creating oily vapours or not evaporating off the valve because of its composition then it has merit.
The video makes the false claim that vapors coming from the PCV attributed to the NOACK volatility cause the intake-valve deposits. This myth has been debunked with scientific research papers. Intake-valve deposits are caused by the PCV-oil-mist droplets containing the full additive package, not base-oil vapors arising from the NOACK volatility. So much with this video deserving merit.
He talks all about additives and only makes reference to the oily vapor with the animation. Where does he say it's only related to Noack?
Originally Posted by Gokhan
The video makes the false claim that vapors coming from the PCV attributed to the NOACK volatility cause the intake-valve deposits. This myth has been debunked with scientific research papers. Intake-valve deposits are caused by the PCV-oil-mist droplets containing the full additive package, not base-oil vapors arising from the NOACK volatility. So much with this video deserving merit.
So you disagree with the experts at Valvoline?
The video makes the false claim that vapors coming from the PCV attributed to the NOACK volatility cause the intake-valve deposits. This myth has been debunked with scientific research papers. Intake-valve deposits are caused by the PCV-oil-mist droplets containing the full additive package, not base-oil vapors arising from the NOACK volatility. So much with this video deserving merit.
So you disagree with the experts at Valvoline?
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