sweet66monza
Registered User
From my understanding, all the new Delo has no zinc content like the old stuff did. I ran the Delo 400 in my classic gas cars also because of zinc content and camshaft failure. Locally I can still get mobil delvac CJ-4 but all the delo is now ck-4. Should I switch over to Mobil (As long as I can still get it?) TIA!