Home  |  Sitemap  |  Contact  |  Print  |   

E85 Admixture

---

With the introduction of the biofuel quota law on January 1, 2007, up to 5 % of Ethanol are added to the gasoline in Germany. So you fuel your car with Ethanol automatically. You can easily increase the percentage of Ethanol in your tank by filling up with more Ethanol. Due to the lower price of E85 you can lower your operating costs and CO2 emissions.

The former German Secretary of the Environment, Mr. Sigmar Gabriel, originally planned to increase the part of ethanol added to regular gasonline from 5% to 10% in 2009. The secretary asked the automobile manufacturers for statements whether their cars could run on a 10% ethanol admixture or not. During that time all major manufacturers stated that the far bigger part of their cars could run on "E10". Back in 2007, Porsche and Volkswagen released press notes to confirm the E10 compatibility of their cars. In 2008, many other manufacturers like BMW, Mercedes-Benz, Toyota, GM or Peugeot gave clearance for the use of E10 in most of their cars. But some of the automobile importers stated that their older cars would not be able to run on E10, so the plans were postponed. Currently it is planned to launch E10 in Germany in 2011 the latest.

For further information on E10 please visit our E10-site.



There are clearances by all major car manufacturers for a share of 10 % Ethanol in the fuel mixture.

For the Cayenne, Porsche recommends an admixture of up to 25 % Ethanol, which equals an admixture of around 30 % E85.
Download.

We also recommend an admixture of up to 30 % of E85 for Otto motors of the car pollutant classes EURO 1, EURO 2, EURO 3 and EURO 4. You will feel the engine’s running attitude lightly improved due to the higher octane number of the fuel mixture and the exhaust gases are being reduced. Regularly, the admixing of bioethanol doesn’t have a bad influence on the stability of your engine. A boost of the usage is not really significant because the lightly lower heat value of the mixture only has an effect under load.

Download Savings Calculator E85-Admixture
Download: material compatibility E85 / gasoline

All these cars have an electronic injection system with a controlled catalytic converter (Lambda control) which should be able to even out the lower heat value of around 10 % of the gasoline-ethanol-mixture.

You can have the Lambda control of your car checked with the help of an OBD tool. The correction values should not reach maximum values in partial loading and Lambda voltage should not sink lower than 800 mV in full loading, unless the manufacturer gives other values.



If you have added a percentage of ethanol to the gasoline that is too high for the engine, the standard limit of the engine control unit will be overshot. With almost any recent injection systems (MPI) the engine control would then generate a malfunction (i.e. lambda to long lean). Should this malfunction occur permanently, the engine control lamp (check engine) will flash up. You will feel a light bucking in acceleration as well as a loss of power. Just refuel with gasoline and the malfunction will be remedied immediately.

For further information please contact your car dealer.

In many other countries like Brazil, the USA, Sweden and Denmark, E5, E10 and E30 are standard fuels for many years now, and are used as replacements for regular gasoline.

We have tested the admixture of Ethanol in different car types successfully in Germany since 2005. We were able to elevate the ethanol share a bit higher in several cars without any problems either.

Before fueling more than 10 % Ethanol, please ask your car dealer about possible effects on a manufacturer warranty.

Please mind that your engine might overheat in case of an excessive share of Ethanol. Only Flex Fuel Vehicles (FFVs) and especially converted cars are able to fuel pure E85.

Datenschutzhinweise  |  Rechtshinweise  |  Impressum

Copyright © 2008 autodrom