so its time for summer, i think ill use my new ls/vtec build for daily driving, 40 min to work and back each day. the motor and all components are rebuilt and upgraded, and was broken in using quaker non 10 40. as a quick opinion, should i be using 10-30 or is 5-30 acceptable from now on.

 

Depends on ambient temp, bearing clearances and operating temp the engine will see.