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Message: <blockquote data-quote="E34EuroTouring" data-source="post: 57422" data-attributes="member: 1026">E34 runs pretty hot and as many pointed out the hood insulation is really overkill!. One way would be to reduce or even cut some holes in the insulation to get more airflow. Putting hood vents would make too much of a "ricer" statement....Also, for older cars, the AFM or MAF temp sensor may not be so effective, thus not measuring as hot as it actually it. So it engine may run a bit richer resulting in less power and more consumption!. Sometimes a good clean of these parts will improve things somewhat.Night driving when it is cooler are times when the E34 likes and so are rainly days where the air is denser. I find that the older M20 engine is more sensitive to temp changes than M50TU engines. They are rather different technologies, so it seems advancement has its benefits.Guys, for E34 to run well, all fluids needs to be right level and good condition. Worn parts replaced and this engine will service you for years without major hassle.Driving the car hard is a good thing sometime to burn off those pesky deposits from bad gasoline etc. I do this with my BMW often, gun the throttle on an open stretch.... <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink    ;)" loading="lazy" data-shortname=";)" /></blockquote>