You're the one who thinks he knows more than the factory engineers but I'M the one that's delusional?THat's down right hysterical.L motors have gone BILLIONS of miles WITHOUT this mod your championing.It is NOT needed and serves no purpose.
Just because something "doesn't go wrong,doesn't mean it's a good idea.THe factory guys weren't idiots.They did it for a reason.And unless you been wrenching on Datsuns before 1976-you're a JUNIOR officer.
Look closely at the verbage.This company bought it from an estate sale.Then they "gold plated" the entire truck and priced it accordingly.Very slim market for a Datsun in that price range.
Anything more than a 15% mix of veggie oil VOIDS all inject5or pump manufacturers warrantees.Basically,like some women-veggie oil should be left in the kitchen.