Cm870 low oil pressure

[berrytrucking94]

I figured that would be the common answer here.

I’m stumped trying to figure where I went wrong with this, since I bought it with 380k miles 4yrs ago I’ve been the only driver and always tried to keep a close eye on the way it ran. Tuned by a member here, 10k oil changes, nothing but fleet guard filters w/ delo and sta lube added

Overhead run once a year..At one point I had fuel pump issues for a bit that wasn’t corrected right away. Also had a slowly sticking vg vein a while ago that may have been causing some over fueling? Could this hav affected it?

We haul 100k gross all day, could it be that? Did I go wrong somewhere with maintenance? Just plain bad luck?

If I can avoid this happening as fast in the future any advice is great