Porsche Cayman owners manual page 188

text version of content this owner's manual page from owners manual to the vehicle Porsche Cayman, year of production 2006:

Fuel Recommendations Unleaded fuels may not be available outside the Fuels containing alcohol and ether continental U.S. and Canada. Therefore, we rec- Your Porsche is equipped with catalytic convert-ommend you do not take your car to areas or Some areas of the U.S. require oxygenated fuels ers and must use UNLEADED FUEL ONLY. countries where unleaded fuel may not be availa-during certain portions of the year. Oxygenated fu- Your engine is designed to provide optimum per-ble. els are fuels which contain alcohols (such as meth- formance and fuel economy using unleaded premi-anol or ethanol) or ether (such as MTBE). um fuel with an octane rating of 98 RON Octane ratings Under normal conditions, the amount of these (93 . Porsche therefore recom- compounds in the fuel will not affect driveability. CLCorAKI) Octane rating indicates a fuel’s ability to resist det- mends the use of these fuels in your vehicle. onation. Therefore, buying the correct octane gas You may use oxygenated fuels in your Porsche, Porsche also recognizes that these fuels may not is important to prevent engine ”damage“. provided the octane requirements for your vehicle always be available. Be assured that your vehicle The RON octane rating is based on the research are met. We recommend, however, to change to a will operate properly on unleaded premium fuels method. The CLC (U.S. Cost of Living Council oc-different fuel or station if any of the following prob- with octane numbers of at least 95 RON tane rating) or AKI (antiknock index) octane rating lems occur with your vehicle: , since the engine’s ”Electronic (90 CLC or AKI) usually displayed on U.S. fuel pumps is calculated – Deterioration of driveability and performance. Octane™ knock control“ will adapt the ignition tim-as research octane number plus motor octane ing, if necessary. number, divided by 2, that is written as:– Substantially reduced fuel economy. The use of UNLEADED FUEL ONLY is critically – Vapor lock and non-start problems, especially important to the life of the catalytic convert-RON+ MONRM+at high altitude or at high temperature. - ----------------------or----------------------------------------------------- ers. Deposits from leaded fuels will ruin the 22– Engine malfunction or stalling. converters and make it ineffective as an emission control device. The CLC or AKI octane rating is usually lower than Cars with catalytic converters have a smaller fuel the RON rating: tank opening, and gas station pumps have smaller For example: 95 RON equals 90 CLC or AKI. nozzles. This will prevent accidental pumping of leaded fuel into cars with catalytic converters. 188 Maintenance, Car Care

owners manual Porsche Cayman

owners manual Porsche Cayman - year of production: 2006 - Porsche Cayman owners manual EN