So, posting some garage data from my 2020. No tick from the start, however a loud motor. This is my 4th Hemi so I'm used to it. At 750 miles I dumped the factory fill and went with QSUD 5-30. The plan being, give this a go for 750 (1500 total) and switch to RL 5-30. QSUD 5-30 with RP...