2006 Accord 2.4, 230k, 16months 8k on oil.
Out: Castrol Edge Titanium 5w30, Wix Xp Filter.
In : Valvoline Synpower 5w40, Bosch Premium Filter.
2006 Explorer 4.0, 168k, 16month 5K on oil.
Out: Kendall GT1 Synthetic Blend 5W30, Motorcraft Filter.
In : Same oil, Bosch Premium Filter.