Heres what my 2018 ram 5.7 hemi runs with every oil ive used at hot idle 212 degrees
PP/schaeffers 5w-20: 33-34
HPL premium plus 5w-30: 36psi
Redline euro 5w-30: 39psi
HPL super car 0w-30: 39 psi
HPL super car 0w-40: 41-42 psi
Mobil 1 Full Synthetic X4 0w-40: 40-41 psi
Redline 0w-40: 44psi
My 2026 hemi durango runs higher at 37psi with Pennzoil Ultra Platinum 0w-20