2013 Ford f150, 5.0L. Royal purple 0w40 and a bottle of ceratec

[white5.0]

Here's my first oil analysis, ceratec was added because I heard it quieted the infamous 5.0 "BBQ tick". Was only drained so quickly because I have a mysterious coolant leak that I cannot find, and I wanted to see if there was any coolant in the oil.

 

[fantastic]

Don't see any Potassium so I'd assume it's leaking externally somewhere?

 

[white5.0]

Would be my best guess. I ran leak detection dye for about 2 weeks, didn't see a drop anywhere. Put in a new thermostat and flushed the system, added motorcraft coolant. Have to add a quart or two every couple of months. I'm gonna get the tranny fluid analyzed next to see if there's an internal Crack in the radiator or something

 

[SubieRubyRoo]

Replace your radiator/coolant tank cap as a first step. If it’s not sealing you can be venting that to atmosphere and you’ll never find it anywhere.