Dipstick question

[WQ59B]

Well, its the 2-ton COE, so cornering sportily and 60 MPH is beyond reach. On initial start-up, mechanical ‘thermometer’ gauge shows PSI in the low 30s. That will drop (at idle) to the low 20s once warmed up. Not enough seat time yet to report on at-speed pressures.

I read a number of discussions here on proper oil capacity, with the 2 camps divided between 4 & 5 qrts WITH filter, which makes me wonder on proper capacity without one.