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Old 06-17-2019, 12:01 PM   #16
Busy Little Shop
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Quote:
Originally Posted by RVFRick View Post
What is gear shear?
Not just gears... Shear Stability is a measure of the amount of viscosity an oil
may lose during operation. Oil experiences very high stresses in certain areas
of the engine such as in the oil pump, cam shaft area , piston rings, and gears
or any other areas where two mating surface areas squeeze the oil film out
momentarily... but technically speaking as our oil shears down we don't see
elevated wear rates because oil analysis shows as viscosity shears down the
flow goes up and the concept of lubrication states the greater the flow the
greater the parts separation...

Understanding in the correct term of increase gravity flow we understand why
Honda's engineers can safely recommend 8,000 between oil changes...

How a oil's viscosity is graded 30 or 40 or 50...
1) oil goes into the hopper...
2)heat is applied...
3)the gravity flow is measured by a stop watch...

That's it... viscosity is a measurement of flow not size or weight...

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Last edited by Busy Little Shop; 06-17-2019 at 01:00 PM..
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Old 06-17-2019, 12:23 PM   #17
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Originally Posted by dtrides View Post
Typically I notice a loss of lubricity before before the recommended change interval.
Next time you change your oil, place a drop of your old oil on your finger and rub with your thumb. Then place a drop of your new oil on your finger and do the same.
I bet that new oil feels more slippery than your old oil .
Do we need to calibrate our fingers???
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Old 06-17-2019, 12:28 PM   #18
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Quote:
Originally Posted by dtrides View Post
Next time you change your oil, place a drop of your old oil on your finger and rub with your thumb. Then place a drop of your new oil on your finger and do the same.
I bet that new oil feels more slippery than your old oil .
Gnaw man, that's because you have two drops on yer thumb
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Old 06-18-2019, 12:57 PM   #19
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Originally Posted by ST Guy View Post
Any idea where Redline fits in there?
Sorry... I don't have any Redline info... google search for "virgin oil sample"...
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Old 06-18-2019, 02:00 PM   #20
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An old racer dude told me...”oil is like religion, they are all different, yet...”

I’ll stop there.
Lotsa good stuff here.
Oil analysts is the best way to figure out what is going, and is a fantastic predictive tool. It is not cost effective for a motorcycle, or even a car with substantial oil capacity.

Changing the oil frequently is the best advice.

In my opinion, and with the mileage we put on bikes, and all the other factors... I think... it really doesn’t matter.

I do think changing your oil unnecessarily frequently is environmentally irresponsible.

Just my opinion. Like religion.
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Old 06-18-2019, 03:42 PM   #21
Busy Little Shop
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An old racer dude told me...”oil is like religion, they are all different, yet...”
I just love technical topics such as oil even though its equal parts myth, religion and feelings...
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Old 06-18-2019, 04:00 PM   #22
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Quote:
Originally Posted by Busy Little Shop View Post
I just love technical topics such as oil even though its equal parts myth, religion and feelings...
None of which necessarily lead you to the truth.
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Old 06-18-2019, 08:25 PM   #23
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Originally Posted by thepretender View Post
None of which necessarily lead you to the truth.
Scientific Method will lead you to the Truth...
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__________________
Have a wheelie NICE day...
Lean & Mean it in every corner of your life...
If it wasn't for us the fast lane would rust...
V4'S are music to the seat of my pants...
1952 De Havilland Chipmunk...
https://www.youtube.com/user/BusyLittleShop/feed
http://s1036.photobucket.com/user/Bu...?sort=3&page=1
http://s1036.photobucket.com/user/Bu...?sort=3&page=1
http://www.flickr.com/photos/55532474@N00/?saved=1
http://www.flickr.com/photos/10503451@N07/
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Old 06-18-2019, 10:21 PM   #24
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Quote:
Originally Posted by Busy Little Shop View Post
Do we need to calibrate our fingers???
Well....There are probably a few around here that should have their fingers recalibrated from time to time...
DT
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Old 06-19-2019, 07:07 AM   #25
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Quote:
Originally Posted by Butch View Post
An old racer dude told me...”oil is like religion, they are all different, yet...”

I’ll stop there.
Lotsa good stuff here.
Oil analysts is the best way to figure out what is going, and is a fantastic predictive tool. It is not cost effective for a motorcycle, or even a car with substantial oil capacity.

Changing the oil frequently is the best advice.

In my opinion, and with the mileage we put on bikes, and all the other factors... I think... it really doesn’t matter.

I do think changing your oil unnecessarily frequently is environmentally irresponsible.

Just my opinion. Like religion.
I came to similar conclusions. Though I am curious to see my oil's analysis report. I'll ride until 5k then do the change and send a sample out for analysis

Quote:
Originally Posted by dtrides View Post
Well....There are probably a few around here that should have their fingers recalibrated from time to time...
DT
Metric or Imperial?
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