[Roadsters] Oil for a U20

[nmleeds at mindspring.com]

What oil to people use? I have been using 10-40 at sea level, but, it seems like its slow to get flowing (strangely high pressure during the first 5 minutes of driving) and burns straight through the engine when I run it hard (1 qt. every 250 miles). After I've been running it hard for an hour the oil pressure at idle drops to nothing -- these readings all from my super-reliable original in dash four-cluster (so take with a huge grain of salt)

I'm tempted to try 5w-50 but thought I'd pick the big brains before I did anything that drastic.

Nathaniel
u20-69 SU's (having too much fun)