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MGBV8
Carl Floyd
Kingsport, TN
(3181 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
79 MGB, Buick 215

authors avatar
MOTOR OIL ENGINEERING TEST DATA
Posted by: MGBV8
Date: June 05, 2017 11:14AM



Dan B
Dan Blackwood
South Charleston, WV
(890 posts)

Registered:
11/06/2007 01:55PM

Main British Car:
1966 TR4A, 1980 TR7 Multiport EFI MegaSquirt on the TR4A. Lexus V8 pl

authors avatar
Re: MOTOR OIL ENGINEERING TEST DATA
Posted by: Dan B
Date: June 05, 2017 11:41AM

Wow...that is long! What is the gist?


MGBV8
Carl Floyd
Kingsport, TN
(3181 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
79 MGB, Buick 215

authors avatar
Re: MOTOR OIL ENGINEERING TEST DATA
Posted by: MGBV8
Date: June 05, 2017 12:09PM

No gist. Lots of information. TMI. :)


pcmenten
Paul Menten

(235 posts)

Registered:
10/08/2009 10:40AM

Main British Car:


Re: MOTOR OIL ENGINEERING TEST DATA
Posted by: pcmenten
Date: June 05, 2017 10:17PM

So, I've browsed the file at that link. Here are some observations;

The good;
The author is sincere in his efforts.
He does his own testing.
The author's background helps inform his explanations.

The bad;
The author is pretty sure of himself, even when he's talking nonsense.
He seems to be uninformed about the nature of 'zinc' - ZDDP - Zinc diaryl dithiophosphate, and Zinc dialkyl dithio phosphate.

To me, not even understanding ZDDP invalidates much of what he wants to convey.

His explanation of the flow qualities of the various grades of oil, 5w20 vs. 5w40 vs. 10w40 made reading his information worthwhile.

I wish the author would have spent more time talking more about bearing clearances and how they impact lubrication qualities.

I saved the information to my archive of files, but I read it with skepticism.


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