1997 Buick Le Sabre trouble

i have a 1997 buick Le Sabre engine is 3800 series ll at frist it had slight knocking nosie then when i drove it it started to make a clicking noise real fast then started making noises on both sides of the engine it started to lose power. then the oil pressure went down. oil started to come out of the pully area and right by the vaive covers now when i start it has heavy engine noise on the right side of the engine its fwd so thats the side farthest away what happened to my car. this is the seond buick that this has happend to me same thing the other was a 93 regal custom

Is the coolant low & oil look like chocolate milk?