I'm aware that a very old 1hz like the one in my 80 has a lot of wear and potentially blow-by.
I'm noticing when driving that the oil pressure is not coming much above 1/3 anymore and when idling (hot motor) the pressure goes to about 1/6 on the gauge.
I always change the filter with a genuine one and do oil changes roughly every 10000 km. I use Delo 400 multigrade oil. I always use an oil system flush (Nulon is the one I use) as part of the oil change routine.
I've not replaced the oil pressure sender or any other parts of the oil system besides replacing the filter when I do oil changes.
I've tried stuff like 'worn engine treatment' etc. in the oil and really those products do nothing that I can determine apart from perhaps a very short term improvement in oil flow by improving the wear properties.
Putting aside the fact that the motor is very old and worn, is servicing the oil pump, etc. a feasible thing to consider and is it something that's relatively easy to do with the motor in the vehicle?
I'm noticing when driving that the oil pressure is not coming much above 1/3 anymore and when idling (hot motor) the pressure goes to about 1/6 on the gauge.
I always change the filter with a genuine one and do oil changes roughly every 10000 km. I use Delo 400 multigrade oil. I always use an oil system flush (Nulon is the one I use) as part of the oil change routine.
I've not replaced the oil pressure sender or any other parts of the oil system besides replacing the filter when I do oil changes.
I've tried stuff like 'worn engine treatment' etc. in the oil and really those products do nothing that I can determine apart from perhaps a very short term improvement in oil flow by improving the wear properties.
Putting aside the fact that the motor is very old and worn, is servicing the oil pump, etc. a feasible thing to consider and is it something that's relatively easy to do with the motor in the vehicle?