Page 204 of 324 pages for Buick RIVIERA 1993 Owner Manual.
4. Then ﬁll tht: coolant recovery tank to ”FULL 6. SIM: the engine anti let it run until you can feel the COLD." upper radiator hose getting hot. Watch out for the
5. Put the test]: hack on the coolant recnwry tank, but “Em" In”
leave the radiator pressure cap off. 7. By this time the cuulttm level inside Lht: Iadiulor filler neck may he Inwer. H the level is; luwcr. add more of the proper mix through 1he ﬁlter neck until the level mﬂdlth the base of the filler neck.