I am not a fan of snake oil, but I did have success with this one time.
I have an old motorhome that also does a LOT of sitting. Getting ready for a holiday trip, started up and had a noisy lifter. With not too many options, I added some Rislone to the oil, half strength. Within a few minutes, that old 360 was as quiet as a church mouse.
Now, you could try it out. This product is designed? to go in the oil vs. those that go in the gas, oil, radiator, battery, etc. They shall remain nameless.
It is totally up to you. One case does not a rule make.
I am suspecting a little varnish on the HLA or more likely a partially plugged HLA filter.
I have an old motorhome that also does a LOT of sitting. Getting ready for a holiday trip, started up and had a noisy lifter. With not too many options, I added some Rislone to the oil, half strength. Within a few minutes, that old 360 was as quiet as a church mouse.
Now, you could try it out. This product is designed? to go in the oil vs. those that go in the gas, oil, radiator, battery, etc. They shall remain nameless.
It is totally up to you. One case does not a rule make.
I am suspecting a little varnish on the HLA or more likely a partially plugged HLA filter.