Like most fuels, diesel is a mix of hydrocarbons, and the components have different freezing points. For Number 2 diesel, as the ambient temperatures drop toward 32 degrees F (0 degrees C), it begins to cloud, due to the paraffin in the fuel solidifying. As the temperatures drop below 32 F, the molecules combine into solids, large enough to be stopped by the filter. This is known as the gel point, and generally occurs about 15 degrees F (-9.5 degrees C) below the cloud point.
This wax then forms a coating on the filter which results in a loss of engine power. The same thing happens on starting an engine when the temperature is below freezing. The filter becomes almost instantly coated with wax - usually, enough fuel gets through to allow the engine to idle, but not attain operating RPM. There are two common ways to overcome this: one is a diesel additive, the other is a fuel heater.
2007-11-29 00:50:10
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answer #1
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answered by Anonymous
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Diesel is a mix of hydrocarbons, and the components have different freezing points. As the surrounding temperatures drop toward 32 degrees F (0 degrees C), it begins to cloud due to the paraffin in the fuel solidifying. As the temperatures drop below 32 F, the molecules combine into solids. This is known as the gel point, and generally occurs about 15 degrees F (-9.5 degrees C) below the cloud point
2007-11-28 23:22:07
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answer #2
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answered by David J 2
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Todays specialised production and de-waxing of high quality diesel fuel, puts its freezing point at around -45°C.
2007-11-28 23:20:14
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answer #3
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answered by Norrie 7
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At diesel freezing temperature ?
Sorry about that I'm academically challenged :o)
2007-11-28 23:59:39
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answer #4
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answered by Anonymous
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Near about 5 deg C.
2007-11-28 23:25:30
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answer #5
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answered by ag_iitkgp 7
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Hey Clara, don't know if you're being serious and want all the techno babble, but I would just have to say I don't know but just wait till it turns from liquid to solid then you'll know lol
2007-11-29 02:52:25
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answer #6
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answered by Roger S 5
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