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How long does an oil film stay on engine parts after shutdown
- Thread starter BrianApp
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lol
good to know! I just bought a jug of M1 EP 10W-30 for $22 and change.
it say 20K miles on it but I'm not that gutsy! Maybe one third+ gutsy.
Dart board ...
No!
I heard from one of the school principals that some of M1 molecules were classmates with the Magnatec intelligent molecules.
You know if you hangout with bunch of turkeys , you can't soar with eagles kind of thing.
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that was a fluke
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This is of course the only answer you could give.
We are just having a little fun. I have already given my answer in post #5:
"Use oils with ester and/or moly.
They stick to metal better."
You mean Magnatec low Noack happened by chance and a good "side effect" of the formulation and not necessarily by design?
Either way (by design or not), it's a good Noack. However, it would be nice to know the story. I assume the formulators or chemists target to be below the max allowed by the spec or requirements.
iirc, narrow spread oils like 10W-30 typically end up with lower Noacks and not necessarily by design but as a consumer, I focus mostly on the end product and not why or how it got there.
manicrodder
$50 site donor 2022
Dart board good. Pros use roulette wheel!Dart board ...
My PC cost is minimal, and a tax write-off.
You can use any approved & certified Euro oil that allows your VW/Yoders to identify as a Porsche/Lexus.
I'll continue to use an 'Murrican earlsz that oozes bald eagles & freedom into my sump.
Crystal?
Incorrect, so many 10w30 engine oils have a lower Noack . In fact that may be on the higher side for 10w30.
Curious, how do you figure? Wouldn't a lighter oil be more defiant of gravity longer than a heavier oil? Assuming no other factors, such as rain washing it off.
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Regarding the discussion of Magnatec here, I do wonder if Castrol can be sued or at least taken to task for the use of the term intelligent molecules. It is marketing. I, for one, would or could be taken by it.. however, are they not just standard molecules, same base oil and slightly less stuff than Castrol Edge?
I recall hearing that any oil will cling to internal engine parts, probably more so with an ester base oil, as was mentioned, something to do with that base being more attracted to metal, I am not 100% on the science, however @High Performance Lubricants also mentioned use of a tackifier in the additive pack, if they wanted to add or if that also comes into play here.
I recall hearing that any oil will cling to internal engine parts, probably more so with an ester base oil, as was mentioned, something to do with that base being more attracted to metal, I am not 100% on the science, however @High Performance Lubricants also mentioned use of a tackifier in the additive pack, if they wanted to add or if that also comes into play here.
C’mon man. Marketing sells lots of products. If Castrol uses that line and is successful oh well.
dont forget the moly crap too.....
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I'm turning into an old man and want to be more pedantic lol. I agree with your statement.
It worked too. Instead of being scientific which would alienate 99% of consumers, Castrol tried to market it differently so most could understand. Only here is the term argued.
If BITOG had been around when Ricardo Montalban was pushing Corinthian leather that might have been the biggest topic on here. You would have people looking on their globes for Corinthia trying to see where this great leather came from.
It actually came from New Jersey.
All else equal, higher viscosity means high film strength which means it sticks to parts longer. With oil, the term "light weight" refers to low viscosity, not low mass.
I opened up my motorcycle engine after sitting for 1 year, the cams still had a light film of oil on them.
10w-30 oil.
That's impressive. On the opposite end of the spectrum, Lycoming O-320 and O-360 engines are horizontally opposed pushrod engines having the cam above the crankshaft. Because the cam sits up high, after residual oil drips off it is exposed and can corrode. Cam lobe corrosion/decay/pitting/spalling is common for these engines if they sit unused for more than a week or two on a regular basis over time. And this is using relatively thick oils: straight weight 40, 50 or 20w50. Owners (like me) frequently use the Camguard additive in these engines.
I once helped install a junkyard engine in an old VW Scirocco using an engine that had sat in a junkyard for 11 years. The outside of the engine wasn’t very pretty but there was no visible rust inside and everything still had a coating of oil. After that I figured any engine is going to survive sitting for several weeks or months.
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