Comments on: Zinc Oil Additive in Classic Car Engines – Part I https://classicautoadvisors.com/2021/09/13/zinc-oil-additive-in-classic-car-engines-part-i/ Blog for Classic Car Owners Wed, 30 Nov 2022 01:17:57 +0000 hourly 1 https://wordpress.org/?v=6.9.4 By: Bob Scholem https://classicautoadvisors.com/2021/09/13/zinc-oil-additive-in-classic-car-engines-part-i/#comment-1660 Wed, 30 Nov 2022 01:17:57 +0000 https://classicautoadvisors.com/?p=23225#comment-1660 In reply to Bob.

Bob:
In general, I use Zinc in conventional oil and not with synthetic oil. I am not aware of any issues in the regular use of zinc in oil since it is a supplement lubricant for engines. I use regularly in both my Ford and Chevy engines.
I add a full container of zinc additive when I change the engine oil, so when doing an oil/filer change I fill the oil filter before installing onto the engine then add 4 – 4 1/2 quarts (or 1-1 1/2 quarters shy of the full requirement depending on the oil pan size) into the engine with the zinc. I run the engine to check for leaks and then recheck the oil level in the engine to add any additional oil. This method avoids any chance of overfilling the engine oil.
I hope that answers your questions.
Thanks for asking and reading our blog.
Bob

]]> By: Bob https://classicautoadvisors.com/2021/09/13/zinc-oil-additive-in-classic-car-engines-part-i/#comment-1659 Wed, 30 Nov 2022 00:33:29 +0000 https://classicautoadvisors.com/?p=23225#comment-1659 I have a 1967 Mustang with the 289 engine and I want to know if using a Zinc additive will be a good thing for this classic or will it harm it.
Also, I did buy a bottle of Zinc and I notice that it is a very thick liquid.
If I do add this to the engine that holds 5 quarts of oil with the filter how much zinc would I add?
Thanks for your help.

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