Motor Oil And Your Car
08-15-2017, 04:29 PM
#21
Thanks, you close the book on that topic. 
08-15-2017, 05:36 PM
#22
Sorry folks,
there are other sensors in some engines ( aka mercedes)
there is the oil pressure sender that we all know as the death light, i.e. you just spun a bearing because you didn't have any oil dummy and sucked eh intake dry on a hard corner.
but then there is the oil level sensor, yup measures how much oil is in the pan. so when your two quarts low it will tell you to add oil long before you do the bearing spinny thing.
ahh but there's more, mercedes also puts in a dielectric sensor that detects how dirty the oil is. Based on how bad it is, it tells you when it's time to change.
No More Guesswork Mercedes-Benz sensor tells when to change oil | News & Analysis content from WardsAuto
there are other sensors in some engines ( aka mercedes)
there is the oil pressure sender that we all know as the death light, i.e. you just spun a bearing because you didn't have any oil dummy and sucked eh intake dry on a hard corner.
but then there is the oil level sensor, yup measures how much oil is in the pan. so when your two quarts low it will tell you to add oil long before you do the bearing spinny thing.
ahh but there's more, mercedes also puts in a dielectric sensor that detects how dirty the oil is. Based on how bad it is, it tells you when it's time to change.
No More Guesswork Mercedes-Benz sensor tells when to change oil | News & Analysis content from WardsAuto
08-16-2017, 03:26 AM
#23
The owner of Blackstone Labs has run 0W-20 motor oil in his cars "requiring" 10W-30 and found no engine wear. In his blog earlier this summer. I recall he runs 0W-20 exclusively in all his cars.
North America is slowly catching up to long oil change intervals. 12 months is common in other parts of the world. But oil is cheap so why push it?
-- Chuck
North America is slowly catching up to long oil change intervals. 12 months is common in other parts of the world. But oil is cheap so why push it?
-- Chuck
08-16-2017, 07:12 PM
#24
Engineer "son" here. There is no sensor in an engine that can determine synthetic or convention oil. In fact, there is only a pressure sensor. Theoretically, if, say, milk could build pressure under the conditions, not break down (or boil for that matter) it'd be fine to run.
Nothing in the engine is sensitive to synth vs conventional, but, more surprisingly, nothing is really that sensitive to viscosity (weight). Which means, yes, you could run 0W-20 in an engine (of modern machining and design, of course) without a problem just as you could run 5W-20 or 10W-30.
Nothing in the engine is sensitive to synth vs conventional, but, more surprisingly, nothing is really that sensitive to viscosity (weight). Which means, yes, you could run 0W-20 in an engine (of modern machining and design, of course) without a problem just as you could run 5W-20 or 10W-30.
Do you recommend whole milk, 2%, or fat free?
08-16-2017, 10:40 PM
#25
Community Organizer
My guess is that the mechanic meant the oil change minder. They work off mileage and start and stop cycles. They don't actually "sense" the oil, but the mileage calculations are based on the recommended oil. If the oil minder is set up based on synthetic and you use conventional, you will exceed the service interval before the minder goes off.
Usage based.
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