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#26 |
Senior Member
![]() Join Date: Nov 2018
Location: Waterford California
Posts: 2,534
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Re: Should I be using ZDDP Oil in my 327?
Here is a Lucas Oil Zinc Chart. https://lucasoil.com/pdf/Zinc_Values_MotorcycleOil.pdf
What's interesting to me is their Hotrod and Classic Car Oil which I have seen at my local Speed/Performance Shop @ $5 qt +/- has a Zinc content of 2,100 ppm. Lucas Oils and additives are in use all over the mechanical world with great success, I'm also quite sure their engineers did not simply throw a dart at a chart to decide on the ZDDP ppm ratio. I purchase any name brand oil of the correct viscosity, usually on sale, and always add 4 oz. of Lucas ZDDP for my satisfaction. Witch Craft? Maybe ...but I run 2 flat tappet motors with zero issues. |
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#27 |
Registered User
![]() Join Date: Jul 2015
Location: 2nd left past the stump on a dirt road.
Posts: 2,629
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Re: Should I be using ZDDP Oil in my 327?
No, I have been using this for over 89k on a top end rebuild. It has the correct level of ZDDP and more importantly a higher film strength than most of the "hot rod" oils out there.
https://www.valvoline.com/our-produc...vr1-racing-oil Read this for confirmation: https://540ratblog.wordpress.com/ |
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