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What is your question?
What is the recommended weight of oil for my engine? I have constantly low oil pressure using 20W50.
4 Replies
The crankshaft bearing clearances on a modern Toyota engine are very small. Typical oil pressure at idle is about 3 to 7 psi.
Toyota's are notorious for the oil pressure gauge to read low. I have a 1995 T100 with 235,000 miles on it. Gauge has always read low. It is not a problem with the truck, it runs just fine. Keep your oil changed and check it regularly.