Author Topic: Oil  (Read 939 times)

KurtS

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Re: Oil
« Reply #15 on: June 01, 2018, 05:27:21 AM »
The oil has a unique green color...
When PA crude comes out of the ground, the color can vary from water clear to dark brown. They must be adding a dye to it.
Kurt S
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cook_dw

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Re: Oil
« Reply #16 on: June 01, 2018, 11:12:22 AM »
They must be adding a dye to it.


They do. 

Darrell Cook


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L78racer

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Re: Oil
« Reply #17 on: June 01, 2018, 12:23:46 PM »
Valvoline VR1.

Paul

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Re: Oil
« Reply #18 on: July 01, 2018, 01:54:53 AM »
I have been building engines and racing  for over 45 years and I only use 20W-50 Valvoline VR1 High Zddp . Oil is cheap protection for your engine and A good filter. Rotella no long has ZDDP. You need at least 1300 PPM .

bertfam

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Re: Oil
« Reply #19 on: July 01, 2018, 02:07:24 AM »
Quote
Rotella no long has ZDDP.

That's an incorrect statement. Rotella T4 15W-40 is still rated CK-4, CJ-4, CI-4, CI-4 Plus and CH-4, which means it has the correct levels of ZDDP these old cars require. (The picture below is Rotella T4 15W-40 I picked up today at Walmart.)

The above link I posted from Duke Williams no longer seems to be working so let's try this again!

http://www.corvettesinternational.com/forum/index.php?action=dlattach;topic=370.0;attach=40

From the article:

Quote
Thus, CJ-4 is the best commonly available oil for vintage engines because you are essentially guaranteed a near ideal amount of ZDDP for maximum protection of vintage engine sliding surface components.

The maximum P concentration per the CJ-4 API specification that has been in place and unchanged since 2007 is 1200 ppm, which would yield Zn in the range of 1300 ppm.

Bottom line is use ONLY Parkerized cams and use ANY oil with a primary C-category, and ignore any secondary categories. (Primary C-category oils are also identified by the 15W-40 and 5W-40 grades that are unique to C-category oils.)

Ed
« Last Edit: July 01, 2018, 02:53:22 AM by bertfam »
Ed "Bert" Bertrand
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