Etanol.nu

.environment.gov.au/atmosphere/fuelquality/publications/biofuels-2004/pubs/biofuels-2004.pdf (193 sider) (det mangler "www" i web adressen grunnet forumregler)

Conclusions:
Over mileage there will be a significant increase in the regulated tailpipe emissions for the Australian new passenger vehicle fleet if operated on a 20% ethanol blend fuel.

It is highly likely that certain vehicles will be above the legislated level for ADR37/01 at 80,000km, particularly those with lower engine capacities and engine control system that cannot compensate in all modes of operation for the extra oxygen introduced with 20% ethanol.

Due to deterioration of the exhaust catalyst over the accumulated mileage, vehicles operated with E20 will have significantly higher aldehyde emissions than the equivalent vehicle operated on gasoline.

There is also sufficient evidence to conclude that there was greater levels of wear observed on engines operated with E20 than for those operated with gasoline. Similarly the levels of engine deposits observed were greater for the engines operated with E20 than for those operated with gasoline.

Test bench assessment of the fuel system components identified performance trends that were consistent with the findings of an earlier material compatibility study. Though the vehicle durability cycle was not as severe as the earlier component tests, the fuel system performance results were suggestive of similar modes of wear including a relative reduction in fuel filtration and a relative increase in fuel pump drag when mileage was accumulated using E20.

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2013 Kia Rio 1.25 CVVT - E85
2013 Honda NC700X DCT - E10
2011 Ford S-Max 2.0 TDCI - B7
2010 Briggs & Stratton 2.6HP - E85
2007 Briggs & Stratton 5.5HP - E85
2001 Hyundai H1 SV 2,5TD - B30
1982 Nissan 280ZX Turbo - E55
1973 Porsche 914

Gammal rapport, tror det var Orbital som gjorde den.
E20 är nog ingen bra ide, bättre med E85 eller E96.
Men forskningsläget är oklart gällande E10-E40.

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OK, här hittar man alla de där rapporterna:
http://www.environment.gov.au/atmospher ... lications/


Man började med enkla materialprover:
http://www.environment.gov.au/atmospher ... index.html

Jag har tagit bilder på min utlsitna bräsnlepump som jag tvingades byta i vinter, den såg då inte ut som på bilderna på pumpar i rapporten kan jag säga iaf.
Snarare som helt ny map korrosion.
(Skall återkomma i denna tråd med bilder från pumpen körd i E85 i 2-3 år , 3000 mil, senare)
Gällande proven av slangar kan jag konstatera att sådana nedsänkningsprov har mkt lite med verkligheten att göra.
Dels är inte slangarnas utsida gjorda för bräsnleexponering, dels är svällning i sig sällan ngt negativt för bräsnlekomponenter. Tvärtom ökar ju täthet osv. Det omvända, krympning hade varit mkt värre.

Sedan kom man på att de där testerna nog inte hade så mkt med verkligheten attt göra i rullande bilar...:
http://www.environment.gov.au/atmospher ... index.html

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