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SatanLifeProTips t1_irjl2qf wrote

Reply to comment by Knut79 in Germans ZEDU Car Is Most Environmentally Friendly Vehicle In The World by Educational_Sector98

‘Engines running poorly’ when cold is due to condensation of fuel on the cold cylinder walls. Vapour fuel burns, liquid fuel does not burn. That’s why the choke plate added extra fuel on a carb and why your fuel injection needs a coolant temperature sensor to do the same. Nothing to do with cold oil.

The oil flows just fine now. Modern oils have solved those flow problems. Especially synthetics.

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Knut79 t1_irjlixg wrote

If only there was some way to look at the oil in winter and see that it has reduced viscosity as is closer to honey than motor oil...

I don't know... Maybe a stick that also could be used to measure oil level... Seems far fetched.

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SatanLifeProTips t1_irjm1b4 wrote

Or just read the bottle or better yet the SAE engineering data? These are published numbers.

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Knut79 t1_irjmazk wrote

Have you even checked a metering stick at -30?

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SatanLifeProTips t1_irloeo5 wrote

Yes. I also use synthetic oils so that is a non issue. Read the cold weight if your oil. A 15w40is going to be thick. But then you get into a modern 0w40 and it’s super thin when cold. It’s not like gear oil with it’s ‘channel temperature’. And anyone out in the frozen nothing is buying the right oil.

A wet braking system would be using a super thin oil. Like ATF. You don’t want a film like engine oil. That’s what crank bearings use to not contact the metal underneath.

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