1855 oil

[herefordfarmer]

I have an 1855 I've had for 40 plus years. A grandson greatly overfilled the motor oil. It does odd jobs around the yard. I noticed the oil pressure starts out fine then after awhile drops in half. Any correlation between the two? Thanks

 

[scootergmc]

What does it do with correct oil level? What numbers are you getting? It's common to drop when hot, at hot idle.