Packard Forum Index » V-8 (1955-56)

Hi, Bob,

I was in Cal State Hayward when it was a bare hilltop, back in 1972.

In the Bay Area, 20w-50 would work. Some of my sources say, since no post-cat cars ever specified 20w-50, it has not been reformulated to remove as of the wear additives as the 0w-30. However, as per Jeff Rice and others, there are enough other additives and the spring pressures are low enough on your 327", you shouldn't have problems with 10w-40.

thnx, jack vines

Good to know. The oil pressure hot is around 35/36 pounds. I have read that the oil pressure at 35 miles per hour should be 40 pounds. My engine has about 60K on it right now. I did once run 20/50 oil but thought the oil pressure was too high. Was thinking that the thicker oil might not cool the bearings as well because of the slower flow rate. When very hot the engine idles at around 23 pounds on 10W40 oil. DO you think this is OK? Bob

I was in the Navy in 72. Moved to Hayward in 1986. Do you remember Ye Olde Pizza Joynt With its Wurlitzer theater organ?

Hi,

I just changed to the Chevron 15-40 after replacing the cam spacer plate and it doesn't make any valve noise now.

Gene Wescott

Quote:

G'day Gene,

First post I see, and you obviously have a Packard. Could you please share it with us in the Owner's Registry together with a pic, any known history and how you acquired it?