After stupidly not stocking up on oil. And finding myself in a bind as I need some quick, I decided to also ask the oil gurus at Bob Is The Oil Guy their thoughts on the best oil for an LT5. No, there aren?t any LT5 experts there, but they sure seem to know their oils. The consensus, after a lot of posts already, is a Porsche spec, A40 oil. Even the Mobil 1 European spec A40 oil has 1100ppm of zinc, and seems readily available.
They have jumped into to the discussion with enthusiasm, to say the least. I?m happy with the AMSOIL in the long term, but it is interesting to read about other oil options.
Here is the link, if you dare:
https://bobistheoilguy.com/forums/th...e-zr-1.356668/