Re: Access to EK lounge at Singapore on QF J ticket?
The two J and one OWS pax can each guest one. If the renos are still going, jump on the inter-terminal train for a 2 minute journey to the satellite terminal and use the J lounge there. Actually visit it anyway, as I think it is better.
You also have access to the CX lounge in the satellite terminal (same guesting rules) if you would like - but don't plan on spending any more than 90 seconds there. 