Cant find a cooling system section in here so excuse me if this is in the wrong place. I suspect the fan clutch on my Buick 455 is not working correctly. The temp cycles from 80C to 120C and back, with no apparent reason. As Im in Australia it may be difficult to source another fan clutch so any info on them will be a bonus. Like are they the same as any other vehicle ? Wheres the best place to buy one from? A mechanic tells me my other option could be to change the fluid in mine? Any thoughts, ideas , suggestions, will be greatly appreciated. Thank You Chris (OZGS455) Its a1971 Stage 1 if that makes any dufference .