Quote:
Originally Posted by ndutton
For RWC engines, beyond about 160°F salt begins to leach out of solution clogging the cooling passages. I've seen manufactured RWC mixing elbows (exhaust) completely closed off with salt. The engine prefers a higher operating temperature like 180 - 190° but in the case of RWC the cooling medium can't tolerate it.
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Since adding the Temp and Oil pressure warning system, I seem to be running cooler. At fast idle around 130 and at cruise just under 140. I used to run around 170. I'm guessing there is some resistance in the temp sender wire that I perhaps exacerbated while putting the Tee fitting in the block for the alarm and sender. I'll be checking that this weekend but it got me to thinking, is there any downside to running a bit cooler?