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Old 05-04-2010, 09:38 PM
D_Ryan D_Ryan is offline
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Join Date: Oct 2004
Location: Williamsburg, VA
Posts: 108
Operating temp revisited

Good Evening All;

A search of the archives didn't really turn up a definitive answer, so I'm soliciting opinions once again...

1985 300TD Cali-spec w/278K on the clock, 101K on new long block.

The thermostat had stuck open, evidenced by the long time required to get up to temperature. Driving highway speeds (70 - 75) with temps in the 40's - 50's I would never see 80 on the temp gauge. Thermostat replaced yesterday, and this morning driving my commute I saw the gauge running right around 100 (ambient temp of low 70's).

Checked the reservoir before driving home this evening, and it was very low (I had run the heater on the drive down this a.m.). Topped it off w/ Xerox and H2O, and drove it home (~50 miles). Outside temps now low 80's, and the temp gauge hovered around 95 or so (about the needles' width below the 100 mark).

Cause for worry, or am I within a viable operating range?

Need to run 500+ miles to Columbus, OH this weekend, hence the concern.

Thanks in advance,
Dave
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