On Apr 29, 7:59 am, "Doki" <mrd...@[EMAIL PROTECTED]
> wrote:
> "malc" <malunspamwh...@[EMAIL PROTECTED]
> wrote in message
>
> news:VrqRj.17015$yD2.4751@[EMAIL PROTECTED]
>
>
>
> > Ken wrote:
> >> The other thread about someone using the wrong oil prompted the
> >> following:
>
> >> Does anyone know what exactly happens if you fill a diesel tank with
> >> petrol? Someone once filled a petrol tractor from the diesel tank and
> >> it was not happy (just drain and replace). But I am curious about how
> >> petrol performs in a diesel engine. I doubt that the result would be
> >> spectacular. Diesel has a higher energy density than petrol so petrol
> >> is unlikely to blow the thing up. So I would expect that petrol would
> >> work. As with oil, I suspect that the net result would be nuisance
> >> rather than disaster.
>
> >> But has anyone tried/experienced it?
>
> > This has been done to death on uk.rec.cars.maintenance. The consensus
is
> > that modern common rail cars can't go very far like that as it
knackers
> > the injector pump (which relies on the lubrication of the diesel). An
> > older simple diesel like a 405 or earlier Xants should be relatively
ok so
> > long as you don't go too far, they do get very rattly and bangy though
or
> > so I've been told.
>
> You used to be able to add quite a lot of petrol to your tank of diesel
in
> days of yore to prevent waxing during winter. Apparently 25% petrol was
> allowed in old Golf diesels, and a bloke in PPC running a 205D on veg
oil
> adds a bit of petrol to a tankful to thin it down a tad. In something
like a
> ZX or similar that's nice and simple, you should be fine.
>
> Common rail and you'll kill the pumps...
The consensus seems to be that if you put petrol in a diesel tank by
mistake, if the pro****tion of petrol is low when you discover the
error, probably filling up with diesel immediately will be sufficient.
If the pro****tion of petrol is high (>50%?) maybe drain the fuel tank
and replace. As I said, the reverse is not the case. Someone (everyone
denied having done it) put diesel in a petrol tractor here and it was
unhappy - it would stop often and restart with difficulty. Drain and
change was the only option.
Waxing of diesel was a problem in Australia about 20 years ago - the
refineries changed their settings (and denied having done so) and
whole fleets of tractors were unstartable in winter until you blasted
them with heat. The outcry/outrage of users was sufficient to prevent
it happening again (up to now anyway).
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