I have a 340 with a flat tappet cam. I used to use Rotella with the Hughes Engines zinc additive which is discontinued. Lucas Hot Rod oil is difficult to find out west which limits my options. Any opinions on Valvoline VR-1 high zinc oil?
love Lucas Hot rod oil. Its all i will run in my 69 street/ strip dart.
I have an aggressive flat tappet cam, and the car sometimes sits a while Without being run. Its high in zinc.
That oil is real good for such cars that sometimes sit... clings good
Like mine all winter and sometimes few days between use even in summer.
stuff is easy to get off Amazon, most parts stores can get it too, or by me, actually stock it. Summit and everybody else has it too
