2018 Tundra 5.7 liter, 170,000 miles
Out: Castrol Edge 5w30 + 10 oz of Seafoam trying to cure timing chain tensioner only working intermittently. Toyota filter
In: Royal Purple 5w30 with Wix filter
2019 Toyota 4Runner 4.0, 75,000 miles
Out: whatever local quick lube installed at previous...