Bob,
Interesting about Mobil 1 not having 20w50. That's what the owner said was in it, so I guess I really don't know what it has. He said that Olthoff recommended the
oil viscosity and he followed it. I'll call Olthoff Racing and get their recommendation. I would like to run thinner
oil if possible.
JayB,
Great advice about
oil quantity. Again, Olthoff will know the correct amount. It's just a standard 351w SVO 385hp motor they routinely install. The car does have an oil cooler. As an aside, I was monitoring the gauges pretty carefully on my drive home. It looked like the oil temp went up about ten degrees from time to time, then came down. I'm not sure, but I think if a truck was ahead of me it went up. I wasn't close to any vehicles in front of me (didn't want any stone chips), but I think the trucks messed up the air going into the oil cooler. I suspect that's what's going on, but I'm not sure.
Jack