Hi all
I am learning the motor oil. there is a saying that the varnish rate is more is better? i can not understand it. can anyone explain it?
thanks
Original Post
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Hi wxh,
It's difficult to understand the context of the statement without checking the article you mention, if you can copy the text or link we can check and offer a more accurate reply, Thanks Rob S
It's difficult to understand the context of the statement without checking the article you mention, if you can copy the text or link we can check and offer a more accurate reply, Thanks Rob S
Hi Rob
please see the attachment. thanks
please see the attachment. thanks
Attachments
Images (1)
The article may be want to say about Piston Varnish Merit Rating
as I know, it is CRC procedure, but i forget the procedure number
It is used to evaluate the varnsih which usually appear (buildup) at the oil-ring area (as well as the piston are) after a certain period of time.
Rating scale is defined in the scale of 1 - 10
10: for ecxellent, no varnish
1 : heavy varnished
so, for varnish merit rating, higher is better
as I know, it is CRC procedure, but i forget the procedure number
It is used to evaluate the varnsih which usually appear (buildup) at the oil-ring area (as well as the piston are) after a certain period of time.
Rating scale is defined in the scale of 1 - 10
10: for ecxellent, no varnish
1 : heavy varnished
so, for varnish merit rating, higher is better
wxh,
The attache article are saying about "rating" not "rate"
Regards,
The attache article are saying about "rating" not "rate"
Regards,
Like all tests, one has to read the method and understand what the rating does.
More varnish is bad. But a scale assigned to clean vice varnishy can be anything. 1-10, 100-0, A-F, etc.
That statement applies ONLY to that test and in that context.
No good everyday application as far as I can see. I certainly can't get that info from a store shelf.
Although, I have extracted some decent info from manufacturers by asking to speak to the right people and talking backgrounds a little first. But not an everyday thing, and not always successful.
More varnish is bad. But a scale assigned to clean vice varnishy can be anything. 1-10, 100-0, A-F, etc.
That statement applies ONLY to that test and in that context.
No good everyday application as far as I can see. I certainly can't get that info from a store shelf.
Although, I have extracted some decent info from manufacturers by asking to speak to the right people and talking backgrounds a little first. But not an everyday thing, and not always successful.
