As I have said many times, oil flow is more important than that oil pressure.
You need sufficient pressure to get the oil to flow through the lifter and through the push rod, any more pressure is a waste of oil.
This is just my 2 cents, and with an other 98 we can buy a bag of chips; but using thicker oil to increase pressure runs the risk of not being able to lubricate some areas.
I agree, excessive wear may need a thicker oil, just be careful of what you select.
yeah with my motor i could literally see and hear the rockers clatter because no oil was reaching them.
lucas oil stabilizer helped
after that i just ran 20w50 and it was happy
but i see your flag is canada.
20w50 in the cold.... may not be as happy lol
but a hot running chevy small block in the desert.... it wanted that thick oil to fill out and flood through all the galleys at volume. 250,000 mile motor
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