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Old 09-10-2019, 11:43 AM   #1
Furno68C20
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Should I be using ZDDP Oil in my 327?

Just wondering if I should be using ZDDP oil? My engine has been rebuild but don't know if the cam is a Flat tappet or roller. What oil do you guys prefer on stock engines vs rebuild?
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Old 09-10-2019, 12:07 PM   #2
68Gold/white
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Re: Should I be using ZDDP Oil in my 327?

I'd use a zinc additive in any flat tappet cam engine, regardless of what oil you are using, to be safe!!!
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Old 09-10-2019, 03:21 PM   #3
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Re: Should I be using ZDDP Oil in my 327?

^^^^^^^^^^^^^^^What he said 100%^^^^^^^^^^^^^
If you don't know.... assume it is a flat tappet cam.
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Old 09-10-2019, 04:34 PM   #4
Furno68C20
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Re: Should I be using ZDDP Oil in my 327?

yeah I rather be safe then sorry. Can you add additive to "off the shelf" oil? or is it just best to buy high zinc low detergent oil?
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Old 09-10-2019, 04:54 PM   #5
'68OrangeSunshine
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Re: Should I be using ZDDP Oil in my 327?

Valvoline VR1 Racing Oil has ZDDP included. I use straight 30 weight in my '68 292 L6.
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Old 09-10-2019, 06:55 PM   #6
jimijam00
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Re: Should I be using ZDDP Oil in my 327?

Shell Rotella T is good enough too. I scored 8 cases of VR1 for $13.xx shipped by Amazon some months back....so I'm good to go in the Chevelle and C10 for 3-4 years.
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Old 09-10-2019, 08:11 PM   #7
Willys_MB
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Re: Should I be using ZDDP Oil in my 327?

I just use the Lucas ZDDP additive with off the shelf oil. Pretty affordable.
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Old 09-11-2019, 08:26 AM   #8
OregonNed
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Re: Should I be using ZDDP Oil in my 327?

I replace one quart of my current oil, (not this), with a quart of Lucas oil treatment. Would it be appropriate to add the Lucas product with this oil too? Thinking of switching from the Royal Purple I use. Thanks
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Old 09-11-2019, 09:15 AM   #9
Sheepdip
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Re: Should I be using ZDDP Oil in my 327?

Quote:
Originally Posted by Willys_MB View Post
I just use the Lucas ZDDP additive with off the shelf oil. Pretty affordable.
Ditto, I buy what ever brand name and proper weight is on sale in the 1.25 gallon jug and add the Lucas ZDDP. I have also found what ever I need pretty cheap also on Amazon and they bring it to me, no chasing it down.
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Old 09-11-2019, 09:02 PM   #10
AussieinNC
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Re: Should I be using ZDDP Oil in my 327?

If you dont know if the engine has a roller cam in it or not...run the ZDDP additive...it wont hurt the roller engine...

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