Quote

... run a synthetic of lower viscosity like 0-40 or 5-50 wieght, as lighter oil flows better and #1 cyl. is the last one to get oil from the pump.

Big Meat VX


5-50 is low?

The oil pump is going to be working really hard with a 50 weight oil. 5-50 oil is 'heavy' in my book. The first digit is a guide for the first seconds after start-up (cold start) only. Just because the index starts with a zero, or even five, doesn't make the oil 'light'. At operating temp., under load, and with you sticking the boot in, the oil pump will be struggling to get 50 weight oil out to that distant cylinder in time to make any difference....perhaps.