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oil temp guage, was wondering what was the rastionale for the volvo decision to have one... 1800 1973

uid 4846's pic
posted by  JohnMc on  Fri Dec 17 06:37 CST 2004
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last visit: Thu Oct 23 07:42 CST 2014
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I think perhaps that was a little me-too-ism on Volvo's part (all the other sports cars have them!).

To the best of my knowledge the cooling of the oil flow is just as important to the bearings as the lubricating qualities of the oil itself. A highly stressed engine will put a lot more heat into the oil. But a Volvo engne, especially stock, is a pretty understressed engine. And especially now with decades of use on the motors, they are nice and loose and probably don't heat the oil up that much.

The VR6 in my 95 VW has an oil temp readout on the trip comp. You can definately see it change. I think the VR6 is a fairly highly stressed engine - it has a separate electircal coolant pump to help keep coolant flowing in the head and a water/oil oil heat swapper (heats the oil on warmup, cools the oil in hard running). I can see a difference in how high the oil temp goes depending on how hard the engine is being used (like on an extended 85 mph highway trip), or if the oil is a little low, or even if the oil needs to be changed.
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I'm JohnMc, and I approved this message.






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