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Old 07-06-2007, 02:50 PM   #1
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fuel heater

Has anybody ever tried heating the fuel in the fuel line for better atomization and a less dense fuel charge?

I'm not talking about extremely high temps. I wrapped my fuel line on my old Hyundai Accent a few years ago with heater hose that had hot coolant going through it and it seemed to help a bit while cruising on the highway. It took a while for it to get warm enough to help though (returnless fuel system).
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Old 07-08-2007, 06:51 PM   #2
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I've heard of cooling fuel but not heating it up. it might form vapor lock though not for injectors or the ecm will dump fuel to make up for the low power(spread out molecules) ?? not sure.
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Old 07-09-2007, 07:16 AM   #3
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Sounds scary to me.

However... fuel expands with heat. So the system would run leaner with heated (expanded) fuel. Until the O2 sensor picks up on the change, then it would stabilize things again.

Of course for diesels, warming the fuel could be a good thing. But I think you'd have to warm the fuel just to get it started.
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Currently getting +/- 50 mpg in fall weather. EPA is 31/39 so not too shabby. WAI, fuel cutoff switch, full belly pan, smooth wheel covers.

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Old 07-09-2007, 01:30 PM   #4
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thats why desils have block heaters
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Old 07-10-2007, 04:04 PM   #5
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diesel block heaters warm the coolant(to keep the thick oil moving faster) . some extreme cold areas they install warmers in the fuel tank because the diesel fuel will gel up if cold causing no fuel flow.
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