Oh this is just great. I recently bought a classic Corvette (C3) with the original V-8. How do I protect the engine and ensure I have oil wit Zinc in it? Is there a specific brand I can/should buy and/or stock up on?
Zinc additive is available.
Of course it’s another expense and something to remember at every oil change.
I lost several cams before I became aware of the zinc being removed from oil.
The good news is that if the engine has been “Broken in” and the cam is OK you have less to worry about so long as you begin using zinc reinforced oil now.
Even the Ppfessional engine builders are ruining cams in new engines, despite exotic break-in lubricants, if the oil has no zinc.
If you just bought the car, give it an oil change, and add the zinc.
You should be able to find it at any good speed shop, such as Summit Racing.
Until recently you could buy premium oils with sufficient zinc in them, but the Fed, are forcing the zinc levels lower constantly.
With a new year just around the corner I expect the zinc levels have dropped again.