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Old 10-16-2012, 03:16 AM   #8 (permalink)
AndrzejM
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As far as I know turbo won't heat up to the oil boiling temp during 10 seconds pulse. If you are driving on the highway for extended period of time with high boost that's the time to let turbo to cool down for a bit before killing the engine. And it's less likely for diesels than gassers, because exhaust gasses are much cooler. You should remember that turbo won't heat up just because of spinning, it's exhaust gasses temp that is heating up the propeller and then heat is transferred to the main axle, so it takes some time for heat to build up in the bearings where oil is working.

And regarding your original question. I think that if you want to reduce wear of the cold engine you suffer in FE area and the other way around, if you focus on the FE only your engine will suffer because of cold wear.
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Gerhard Plattner: "The best attitude is to consider fuel saving a kind of sport. Everybody who has enough money for a strong car, can drive fast and hit the pedal. But saving fuel requires concentration, self-control and cleverness. It's a challenge with the nice effect of saving you money that you can use for other more important things."
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