manual Audi A4 Audi A4 B8 owners manual page 253

text version of content this owner's manual page from owners manual to the vehicle Audi A4, year of production 2008 - 2015:

document_0900452a81b1b9de.book Seite 251 Donnerstag, 26. Juli 2007 9:16 09 Fuel and filling the tank 251 Fuel and filling the tank Petrol • Even one tankful of leaded fuel would permanently impair the efficiency of the catalytic converter. Applies to vehicles: with petrol engine • High engine speed and full throttle can damage the engine when Petrol grade using petrol with an octane rating lower than the correct grade for the engine. The correct grade of petrol is listed inside the fuel tank flap. The vehicle is equipped with a catalytic converter and must only be Diesel run on unleaded petrol. Unleaded petrol must comply with the Applies to vehicles: with diesel engine EuropeanEN228 standard. The petrol grades have different octane Diesel fuel ratings (RON). If, in exceptional circumstances, the correct octane rating is not available, please note the following: Please note the information on the inside of the fuel tank • For engines which require Premium unleaded petrol (95 RON) flap. according to ⇒ page 323, “Performance, weights and dimensions”: Regular unleaded fuel with 91 RON can also be used. This will, Diesel fuel must comply with the European EN 590 standard. It must however, result in a slight loss of power. have a cetane number (CN) of at least 51. The cetane number indi- • For engines which require Super Plus unleaded petrol (98 RON) cates the ignition quality of the diesel fuel. according to ⇒ page 323, “Performance, weights and dimensions”: Winter-grade diesel Premium unleaded fuel with 95 RON can also be used. This can, Diesel fuel can thicken in winter. For this reason petrol stations in however, result in a slight loss of power under certain driving condi-some countries also offer winter diesel. tions. – If premium unleaded petrol is not available, the engine can be run on regular unleaded petrol with 91 RON as an emergency measure. In this case only use moderate engine speeds and a light Caution throttle. Fill up with premium or Super Plus petrol as soon as • The vehicle is not designed for the use of biodiesel (FAME fuel). possible. The fuel system would be damaged if you used biodiesel. • Do not mix fuel additives (“thinners”, petrol or similar additives) Caution with the diesel fuel. • Petrol complying with the EN 228 standard can contain small • If poor-quality diesel fuel is used, it may be necessary to drain quantities of ethanol. However, “bioethanol fuels”, which are the water separator on the fuel filter more frequently than is speci- retailed under various different names such as E50 and E85, and fied in the Service Schedule. We recommend having this done by a which contain a large proportion of ethanol, must not be put into specialist workshop. If water is allowed to collect in the filter, this the vehicle, as this would damage the fuel system. can cause engine performance problems. Controls Safety Driving tips General maintenance Self-help Technical data

owners manual Audi A4

owners manual Audi A4 - year of production: 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015 - Audi A4 B8 owners manual EN