Right. But when I talked to the folks at LS, they said Dexron 2 and not higher. I happened to have an unopened quart of 2 on the boat
from the PO (not sure what for, engine
were replaced since that jug had been purchased). And I called PYI when searching for that, they suggested I send the unit to them and they’d bleed it and refill, which sounded silly to me. Since then, PYI started carrying the fluid they recommend for the LS pumps, I checked their web site.