Lexus RC350 Owner's Manual page 528

528
7-2. Steps to take in an emergency
The coolant level is satisfactory if it is between the full ("FULL" or "F") and low
4
("LOW" or "L") lines on the reservoir.
Reservoir cap
1
"FULL" or "F"
2
"LOW" or "L"
3
Engine (RC350/RC300 AWD)

Engine (RC F)

RC350_RC300 AWD_RC300_RC F_U(OM24748U)
Engine (RC300)

Intercooler (RC300)
