Hot weather Oil viscosity

[73pony]

like the title says. I will be running a portion of the HRPT this year and forecasts are for temps in the mid to upper 90's. I currently run valvoline VR1 10w30. Should I change out to a heavier weight for this given the temps?  My oil pressure is very good. Runs 70 psi pretty constant at idle or cruise with the 10w30 but hasn't been this hot either. Any suggestions appreciated.

 

[Bill73Ragtop]

My vote is to stick with the VR1 10w30. It's a good quality oil that should provide lubrication at those temps.

 

[Don C]

Having lived most of my life in summer temperatures of 95° to 110°+ I used 10w40 or 15w40 year-round. That is what I still use, even though I don't see those temperatures now.