Mazda CX-5 Skyactiv-D 2019 User guide
Feel Alive® FUELING THE PERFORMANCE O F Y O U R M A Z D A C X- 5 Important information on the use of biodiesel blended fuels MazdaUSA.com B I O D I E S E L B L E N D S A N D T H E M A Z D A C X- 5 S K YA C T I V - D 2 . 2 L . Your Mazda is engineered to the highest standards, and features one of the most technically advanced diesel engines in the world. It’s designed to give you years of excellent performance and reliable operation. However, to get the most out of your Mazda, and maintain your warranty, it’s essential to use the correct fuel. Use of non-approved diesel/biodiesel blends can cause serious engine and fuel system damage that will not be covered by your warranty. We’re providing this guide to make it easy for you to be sure you’re using the correct fuel. Be sure to follow the recommendations here and in your owner’s manual. If you have additional questions, call the Mazda customer experience center at 1 (800) 222-5500, or visit your local authorized Mazda dealer. “ W H AT C O U L D G O W R O N G I F I U S E T H E W R O N G F U E L ? ” A QUICK COURSE ON BIODIESEL BLENDED FUELS. Biodiesel is diesel fuel made from vegetable oil or animal fat which is processed with methanal to be used as a bio substitute for conventional diesel fuel. Some states offer certain incentives to blend biodiesel into highway diesel fuel. The percentages of biodiesel in highway fuel can vary, as can the quality of the ingredients and process used to make it. Fuel that is not up to the right quality standard can damage your engine and fuel system. Biodiesel is produced from raw vegetable oil or animal fat, and it’s chemically different from petroleum based diesel. It poses quality risks that depend on feedstock, as well as the production process. Due to these shortcomings, it’s possible for harmful by-products like metals or free fatty acids to contaminate biodiesel. Use of biodiesel from non-name brand distributors or retailers increases the possible negative effects. Your Mazda will operate most efficiently on diesel fuel with the specification ultra-low sulfer diesel (ulsd, 15 ppm or less) fuel that meets the ASTM D975 standard or equivalent. Fortunately, it’s easy to determine if fuel is right for your Mazda by looking at the label on the fuel dispenser. Always verify the fuel grade before refilling. If the fuel grade cannot be verified, ask the gas station attendant for assistance. U S E T H E R I G H T F U E L T O AV O I D T H E S E P O T E N T I A L P R O B L E M S : ACCEPTABLE GRADES FOR USE ARE: DIESEL NO. 2 AND B-5 DIESEL. B5 AND BELOW IS APPROVED Diesel fuel with biodiesel content of up to 5% will generally be labeled “ultra low sulfer diesel” or usld. This is approved for use in your new Mazda. Fill up with this fuel from a name brand fuel station whenever possible. B6-B20 IS LIMITED USE B21 AND ABOVE IS PROHIBITED B-20 biodiesel blend contains biodiesel content between 6% and 20%. The use of this fuel is generally not approved by Mazda and should be used only on a limited basis and only if unavoidable. Always make sure to buy this fuel from a name brand station whenever possible. Never use fuels containing more than 20% or higher biodiesel. If B-20 is used, do not let the fuel remain in the vehicle for an extended period of time. This may cause severe damage to your engine and fuel system which will not be covered by your Mazda new vehicle limited warranty. If you must use B-20 fuel on a regular basis monitor your engine oil level closely, strictly follow the oil change intervals quoted in the instrument cluster and in your owner’s manual, and use only engine oils and filters approved by Mazda for use in your vehicle. Limit engine idling time to less than 5 minutes. -Clogging of fuel filter caused by soaps that may contaminate biodiesel blends. -Clogging of fuel filter due to the growth of microbes in free water contained in biodiesel blends. -Fuel gelling under cold climate conditions. -Sludge formation in engine oil. -Deposit formation on piston rings, oxygen sensors and exhaust gas recirculation parts. -Nozzle coking and injector deposits. -Engine oil dilution because biodiesel is not evaporating from engine oil when fuel enters the engine during particulate trap regeneration. This is especially true when driving under low load and low engine temperature conditions. E X T E N D E D V E H I C L E S T O R A G E R E C O M M E N D AT I O N S MAZDA WARRANTY GUIDELINES Vehicles left in long-term storage (4 weeks or longer) that have biodiesel in the fuel system may form corrision and develop sticking components such as fuel pumps and fuel injectors. This is caused by sticky polymers and acids formed during the biodiesel aging/oxidation process. Diesel fuel with up to a maximum of B5 biodiesel content according to ulsd specification ASTM D975 meets Mazda approved fuel standards and will not void coverage under the Mazda new vehicle limited warranty. DIESEL FUELS BETWEEN B6 AND B20 OR HIGHER POSE RISKS OF ENGINE AND FUEL SYSTEM DAMAGE AND ARE RESTRICTED BY MAZDA. Please refer to the following recommendations to help avoid engine and fuel system damage if you cannot refuel your vehicle continuously with ULSD, maximim B5: FUEL WITH BIODIESEL CONTENT GREATER THAN 20%, INCLUDING B100, IS NOT APPROVED BY MAZDA DUE TO THE RISK OF SEVERE ENGINE DAMAGE. Any damage caused by using such non-approved fuels will not be covered by the Mazda new vehicle limited warranty. Please refer to your vehicle owner’s manual for maintenance schedules and requirements. -Fill up with ULSD (B5 or less) whenever possible, from a name brand fuel station. -Regularily monitor your engine oil level if you have no choice but to use B20 fuel. -Strictly follow the oil change intervals displayed in your instrument cluster or your owner’s manual and use ONLY engines oils and filters approved by Mazda for use in your vehicle. -If you do not plan to drive your vehicle for several weeks, fill your vehicle’s fuel tank in advance with ULSD fuel. -Limit engine idling time to five minutes or as mandated by your local ordinance. If the engine will not start or idle properly after the storage period, an authorized Mazda dealer may have to replace some of the fuel system components and pump out the fuel tank at owner expense. So never store your vehicle with anything other than Mazda-approved b-5 ultra low sulfer diesel fuel.
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