And if she is anything like mine best not to argue. Just smile and say yes hunny.

5w40

Keep talking like that and Borgie will give you an old fashioned.

Where is he when you need him?

http://bobtheoilguy.com/

I prefer astroglide...really good in the upper RPM range

BB any particular reason for running straight 40 wt?
can't remember what you have for power or what your build is, but if its working for you then cheers!

I broke it in on SAE 40 then switched to 20w50 gain 10psi idle 10+ wide open. I was told to break-in on non-detergent with tooled still rings by the builder. Only thing I could find local besides air compressor oil. Ill find out what kind of power I have end of next week motor came out last evening. Working with Bob on top end package over the winter for it and another big inch max effort marine deal. Long story short my motor got put together with a set of heads I had laying around I had ordered a custom set of heads 4-6 weeks turned into 3+ months and I pulled the plug on the heads put it together so I could go boating...