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RETIRED
Join Date: Jul 1999
Location: BOULDER Colorado
Posts: 39,412
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It's NOT an issue of waiting at idle.....it's if the external thermostat is open or not. Putting your hand on the oil lines going forward is the ultimate indicator.
If the lines under the passenger side is hot.....check the dip stick. Cold....don't.....run it some more.
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1983/3.6, backdate to long hood
2012 ML350 3.0 Turbo Diesel
Last edited by Joe Bob; 07-10-2011 at 07:16 PM..
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