I am looking for a oil recommendation on a daily driven cammed LS3. I have been using Redline 5w30 with good results but recently had some work to done to the motor where we replaced the rocker trunnions and valve springs for maintenance. The shop owner recommended that I should change to VR1 20w50 With the miles on the engine being 114K. My typical drive to work is just over 2 miles and I let the car warm up for a couple minutes after startup before leaving. If I should go up in viscosity and I’ve been having good luck with Redline is the 10w40 a better choice over VR1 taking into account my driving habits?