Oil pressure low
I have a 1999 chavy Silverado 4x4 1500 5.3 ls it runs great
drives ok well I put some restore engine treatment in it to
make it batter the trucks got almost 300000 mi on it well
when I put the treatment in it ran it for about 20mines or so
at idle the turned it off the the next day I get in it and drive
down the street and see the oil pressure strat to drop usly
sets at 40 when to 20 then as I drove more it went to 5 so I
took it back home what happen mager had a problem to I
put the #### in my truck plz help took the oil pan off and
the o ring looks ok had old oil