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VWBusMan1
Date registered: Dec 1899
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Vehicle(s):
| Heating diesel for efficiency, would this help an old 300CD|?
Have read that one of the ways 'modern' diesels are achieving higher fuel efficiency and less emissions is by pre-heating the diesel before injection. And, since we now have many ways to pre-heat (via the Veggie Oil conversions), I wonder if pre-heating my diesel fuel would make my engine run better. I do believe, however, that one must be careful not to heat up the main tank too much as it will cause condensation over time. Does anybody have feedback on this? Thanks!!! |
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jdc1244
Date registered: Dec 1899
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| RE: Heating diesel for efficiency, would this help an old 300CD|?
You can’t heat the main fuel tank. Like veggie you could have an aux tank to heat the diesel, something easy to remove and clean should there be a problem.
I’m not sure the benefit would be significant enough to warrant such a project, however.
A better project would be to upgrade the glow system to an ‘after glow’ system where the plugs stay on for a period of time after the engine is running. Obviously this heats the engine faster for less smoke and better overall performance.
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BenzDieselTuner
Date registered: Dec 1899
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| Re: Heating diesel for efficiency, would this help an old 300CD|?
pre heating your diesel like that only seems to make sense if ur in a relatively cold climate........ |
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ForcedInduction
Regular
Date registered: Sep 2006
Location: Federal Heights, CO
Vehicle(s): 1980 240D 3.0VNT
Posts: 89
| RE: Heating diesel for efficiency, would this help an old 300CD|?
MB diesels starting with the 190D 2.2 in 1984 and the 1986 300SDL have fuel heaters built into the engine. Fuel temps below 80*f, they run the fuel through a heat exchanger in the coolant.
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BenzDieselTuner
Date registered: Dec 1899
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| Re: Heating diesel for efficiency, would this help an old 300CD|?
i wish i had a heat exchanger in my 85...... |
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123Guy
Date registered: Dec 1899
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| Re: Heating diesel for efficiency, would this help an old 300CD|?
Heating would be a waste of money and effort. If your 79 is not running well, and you aren't using RedLine diesel catalyst - Start using it. I used it in a 79 300CD from day one to 425,000 miles and it never smoked or started hard. I currently use Redline in our 82 300SD and 84 300CD both have over 200K miles and run like new - you can floor them and they don't smoke. |
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BenzDieselTuner
Date registered: Dec 1899
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| Re: Heating diesel for efficiency, would this help an old 300CD|?
Welcome to P3 123guy !!! see you around.... |
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jdc1244
Date registered: Dec 1899
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| Re: Heating diesel for efficiency, would this help an old 300CD|?
123Guy - 12/29/2006 8:20 PM
I used it in a 79 300CD from day one to 425,000 miles and it never smoked or started hard.
What became of your coupe? (As you can see I'm nearing those miles in my 123, so I'd like to know).  |
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BenzDieselTuner
Date registered: Dec 1899
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| Re: Heating diesel for efficiency, would this help an old 300CD|?
yeah i wanna know too? was she crushed, or did someone else save her???? |
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Inkblotz
Expert
Date registered: Apr 2006
Location: Georgia
Vehicle(s): 90 300GD "Thundering Turtle II", w/ 603A turbo
Posts: 3185
| RE: Heating diesel for efficiency, would this help an old 300CD|?
Have you guys ordered your high mileage grill badges from Mercedes yet? They are free and come with a certificate. You will probably recieve 2 badges for your grill. I got mine a few years back for a 240D that had 450,000 miles on her and she stil ran like new. A guy bought her from me for the same amount as i had originally payed for her.
Mark |
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BenzDieselTuner
Date registered: Dec 1899
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| Re: Heating diesel for efficiency, would this help an old 300CD|?
i am getting closer to getting my second badge........ |
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