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From: Alexander Schreiber <als@usenet.thangorodrim.de>
Newsgroups: alt.folklore.computers
Subject: Re: After the storm, hopefully
Date: Sat, 18 Feb 2023 23:29:18 +0100
Organization: Not much.
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Ahem A Rivet's Shot <steveo@eircom.net> wrote:
> On Sat, 18 Feb 2023 13:33:55 +0100
> Alexander Schreiber <als@usenet.thangorodrim.de> wrote:
>
>> Ahem A Rivet's Shot <steveo@eircom.net> wrote:
>> > On Thu, 16 Feb 2023 22:40:12 +0100
>> > "Carlos E.R." <robin_listas@es.invalid> wrote:
>> >
>> >> You can keep using your ICE (in Europe) for years. Till 2050. Then you 
>> >> won't be able, not because they'll pry it from your cold dead hands,
>> >> but because you will not be able to buy petrol or diesel.
>> >
>> > 	If it's a diesel then it should be easy enough to run it on home
>> > made biodiesel - making instructions and even kits are easily available
>> > online, try not to burn down the house.
>> 
>> In principle yes (I mean, the very first Diesel engine ran on peanut oil),
>> but there are traps. Biodiesel usually isn't straight up vegetable oil,
>
> 	It never is.

Before RME became common, quite a few people running cars with older
(and more robust) Diesel engines switched to feeding them (carefully
filtered) used cooking oil. With the side effect that you tended to
smell a greasy spoon fastfood joint in the middle of nowhere if you
found yourself driving behind them ;-)

>> but usually chemically processed vegetable oils (e.g. rapeseed methyl
>> ester, aka RME) and that stuff can be decidedly unfriendly to the
>
> 	That's the stuff.

It's also apparently a really good solvent, which is typically not a
desired property in an engine fuel ;-)

>> fuel system and the engine (e.g. plastics and metals - with pure RME
>> some plastic have shown noticeable degradation and some metals have
>
> 	Yes some engines need seals replacing - last time I looked into it
> Viton seal kits were available for a wide range of engines.

Yup, replace the (plastic/rubber) parts that RME tends to attack and
you should be good.

>> So will running 100% biodiesel in a diesel engine not rated for kill
>> the engine? Most likely not, but you should expect to pay a lot more
>> attention to regular servicing and maintenance to spot (and fix) whatever
>> issues (e.g. plastic parts of the fuel system degrading) crop up.
>
> 	Yep - all part of the fun of running an obsolete vehicle. Not too
> dissimilar to the problem of five star petrol going away when tetraethyl
> lead did - some cars needed it to avoid pinking.

AFAIK ethanol also does a decent job as an anti-knock agent, without
poisoning your fellow man with lead. Again, parts of the fuel system
(IIRC mostly seals) might need replacement for that.

Kind regards,
           Alex.
-- 
"Opportunity is missed by most people because it is dressed in overalls and
 looks like work."                                      -- Thomas A. Edison