2003 Lincoln Town Car UOA Castrol Edge EP 5w-30

[Jkova0505]

Posting my second UOA for my 2003 Lincoln Town Car with Castrol Edge Extended Performance 5w30. Usually do 10-12,000 mile OCI with 1 quart usually between oil changes

 

[fantastic]

Welcome! Your UOA is why these cars earned their reputation. For their vintage they're really a good wearing engine. You got TAN & TBN..nice! Viscosity did well for your duration. With 1 quart added does that usually end up being about 1 quart low around the 12k oil change or towards the end since I see you added no oil on the 11k run?

 

[Jkova0505]

By the time I need an oil change, the car is not quite a quart low, maybe 1/2 to 3/4 of a quart low.

 

[Jkova0505]

For my previous oil change of 11k miles, I switched from 5w20 to 5w30 oil, and that was the first time the car didn’t use a quart of oil