Join Date: Dec 2006
Location: Medina, Ohio
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Engine temps with new oil
Last weekend, I changed my oil, and am now running Rotella Synthetic 5w-40.
First off, it seems to start much easier in the cold (no stuttering at all), so I am very happy with that.
It seems to me though, that it runs a bit warmer than it did with the 15w-50 that I had in the truck before. I don't have an aftermarket coolant temp gauge, just the stock gauge, so I can't be exact, but It seems to sit higher on the gauge than it did before. On the stock gauge, it sits a little less than 1/2 way up. Before the new oil, it seemed to sit about 3/8 of the way up. Coming home from work tonight, i had the heat on full blast, and it seemed to sit at about 3/8 mark. I turned the heat off and drove the rest of the way home (about 1 1/2 miles), and it raised back up to were it normally sits, just shy of 1/2.
Has anyone experienced something similar? Is there a lgoical explanation that I am just not seeing?
It seems to run just fine, and is quieter now when running warm, and as mentioned before, it starts much easier in the cold.
2006 F250 Supercab, FX4, LWB, SRW, 6.0L PSD
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