Yeah, replace all valve-cover gaskets
https://www.ronayers.com/oemparts/a/...der-head-cover
1x 11009-1574 GASKET,CYLINDER HEAD COVER
2x 11009-1575 GASKET
4x 92055-1225 RING-O,HEAD COVER BOLT
Use torque-wrench on valve-cover bolts. Many people overtighten them in vain attempt to get leaky gaskets to seal. But bolts bottom-out and won't clamp any tighter on shrunken leaking gaskets.