[Vwdiesel] fuel use

[Tad]

Wow, I have to say that this convo makes me glad to live in a place where
it never gets anywhere near 0F, and anything south of +20 is considered
"real effin cold".

A few other thoughts:

   - I wonder if an IDI or TDI would make more cabin heat in extreme cold.
    On the one hand, it seems like the IDI would have more surface area (from
   the prechamber) to transmit combustion heat into the head that the TDI
   would presumably send out the pipe.  On the other hand, TDIs have gizmos
   like the EGR cooler and coolant glow plugs.
   - TDIs have a fine "snow screen" in the intake pipe (hidden in the
   fender), designed to prevent the filter clogging with fine snow, although
   it mainly seems to get clogged up with dead bugs and leaves(so many people
   cut it out).  It's bypassed by a springloaded door that opens up under
   heavy suction.
   - I don't see the benefit of carrying a *full* filter... I've done a
   parking lot filter change with nothing but a pair of pliers, screwdriver
   and length of fuel hose (which I attached to the filter outlet and sucked
   on to prime the filter from the tank).
   - You folks from arctic climates, when you talk about the car losing
   temp from just running the heater, is that with the cabin air set to fresh
   or recirc?
   - On a diesel, you shouldn't have to worry about Carbon Monoxide
   poisoning (blue fingernails) in a snowbound car.
   - It's interesting how various states approach tire chain enforcement
   very differently.  Here in Oregon, having driven over Mt. Hood, Willamette
   pass, and the Siskyous many times, I've never once seen any sign of
   enforcement when chains are "required".  In California, they set up a
   roadblock and check you before you can even get on the highway.




On Tue, Jan 8, 2013 at 1:51 PM, Val Christian <val at mongo.mongobird.com>wrote:

> One other thing, at 0F, a TDI at idle will not heat the car long term.
> If sunny, it may.  If sunny and still air, it will.  You will need more
> than just idle, and as the engine gets cold the coolant plugs fire up.
>
> An IDI will not keep the car warm at -10F at idle, with the blower on low.
> If you pull the cold start (timing advance and throttle increase) out,
> it may.  I have used cardboard folded to shim the stop on the IP
> to bump up the "idle" when in cold temps.  My IDIs were all non-turbo
> and a turbo might be different, but I doubt it.
>
> Also if in a storm be aware of ingestion of powered snow, which can clog
> the
> air intake and potentially suck oil, especially on a 1.5l.
>
> A possible approach to the filter matter would be to temporarily remove the
> filter.  There is normally not much silica in blown snow.
>
> I would also have a cut out milk jug or a shovel, because you will want to
> keep the exhaust free.  In Watertown NY snowstorms, that can become
> nearly fulltime work.
>
> If your fingernails and lips are blue, get out of the car...
>
>
>
> >
> > HI Folks;
> >
> >                 Does anyone have any Idea how much fuel per hour a 1.6
> > diesel would use at a continuous idle? Just wondering how long I could
> run
> > the heater if I was stuck in a snow bank in a blizzard. I have to cross a
> > mountain pass every other weekend from now thru March including a trip
> from
> > Western Washington to Georgia the middle of February.
> >
> > Brian Decker
> >
> > 1990 VW Fox 2 dr wagon with 1.6 turbo diesel
> >
> > 1983 Mitsubishi Mighty Max 2.3 turbo diesel  4/4 pickup
> >
> > 1981 Dasher wagon 1.6 N/A, 5spd
> >
> > 2 Rabbit pickups one diesel and one gas
> >
> > My wife runs a 1983 VW Rabbit GTI
> >
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> >
>
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