1 year ago

MOTOREX Magazine 2016 107 EN

  • Text
  • Motorex
  • Motor
  • Tungsten
  • Maintenance
  • Intervals
  • Alpine
  • April
  • Conform
  • Lubrication


MOTOR OIL MOTOR OIL CHANGES: ALWAYS FOLLOW THE MANUFACTURER’S GUIDELINES As an essential engine design element, today’s motor oils have many jobs to do. These are set out in precisely defined manufacturer’s specifications and are as different as the engine designs themselves. That’s why it’s so important to be diligent about motor oil change intervals. The characteristics and dimensions of the oil and air filters also have an effect on the motor oil change interval calculated by the OEM. Only the manufacturer can say when it’s the right time to change the motor oil. To avoid putting the original equipment manufacturer’s (OEM) warranty terms and goodwill provisions at risk, the lubricant must officially meet the relevant specifications and the motor oil change intervals must be kept in strict accordance with the manufacturer’s maintenance schedule. Since the emissions and fuel consumption falsification scandals, OEMs are likely to be even stricter than usual about following the rules. MANY VARIABLES OEM oil change interval guidelines are developed on the basis of complex technical calculations and empirical data from OEM engine designers and exhaust gas treatment engineers with the help of mostly external oil, air filter and lubricant specialists. By complying with these intervals, the OEM ensures that vehicles can meet numerous requirements in terms of performance, fuel efficiency, maintenance costs, emissions and durability. OEM warranty and goodwill provisions are directly linked to compliance with service intervals. There are currently no lubricant brands in the world that would allow any divergence from these intervals, nor are there likely to be in the foreseeable future. As a recognized developer and producer of quality lubricants, MOTOREX is generally unable to allow change intervals that differ from OEM specifications. MAINTENANCE INTERVAL SYSTEMS The factors affecting motor oil vary tremendously depending on the type of vehicle or machine the engine is installed in. Many modern passenger cars have sensor 8

systems that continually collect a wide variety of engine and in some cases motor oil parameters based on loads, cold starts, fuel quality and driving habits. Most trucks have had these systems for some time now. The engine control unit uses the data to determine a sort of “oil load indicator” and light the maintenance indicator on the dashboard when the precisely calculated interval for changing the oil (as well as transmission and rear axle fluid, etc. in trucks) is reached. That too is an OEM specification. COSTLY IMPACTS There is no comparison between today’s lubricants and those of earlier times. Higher power density, extended service intervals, compatibility with exhaust gas treatment systems and smaller oil volumes all demand more than ever from modern lubricants. Components are engineered to work together with the greatest of precision, leaving only very small tolerances. This is particularly true when it comes to compliance with oil change intervals. For passenger cars, for example, oil change intervals have increased by a factor of 20 over the past 50 years (see chart). WHAT ABOUT CONSTRUCTION EQUIPMENT? Because service and load conditions vary so widely, intelligent maintenance interval systems are still rare at best on heavy-duty machinery such as construction and agricultural equipment and alpine infrastructure such as snow grooming equipment. As a result, different manufacturers’ service hour specifications should be observed with scrupulous care. A quick calculation shows why: if we assume that one hour of operation is roughly equivalent to a 50-kilometer trip by a construction site truck, then an oil change interval of 1000 service hours corresponds to a hefty 50,000 kilometers on the construction site! TREND IN MOTOR OIL CHANGE INTERVALS Maintenance interval (km) 60000 50000 40000 30000 20000 10000 than any supposed cost savings. It’s good to remind final customers, especially the more economy-minded among them, of this from time to time … Your MOTOREX partner and Technical Customer Service will be happy to answer any questions. • DIFFERENT OPERATING CONDITIONS, SAME MOTOR OIL SERVICE INTERVALS The manufacturer’s specified service intervals are based on the heaviest permitted operating loads to ensure high reliability under the operating parameters (emissions, performance, fuel efficiency, etc.) declared by the OEM. Despite the different operating conditions, the van described below is serviced at the same time in all four cases. USE TRANSPORTATION FOR SENIORS’ HOME Av. weight: 2.2 tonnes LARGE FAMILY Av. weight: 2.6 tonnes Different motor oil change intervals depending on manufacturer 0 1945 1955 1965 1975 1985 1995 2005 2015 Model year SERVICE 4500 km/year. Many cold starts, mainly stop-and-go traffic. 17,000 km/year. Mixed service, numerous cold starts and short trips. Long distances during vacations. OBSERVE GUIDELINES Many manufacturers clearly indicate the consequences of neglecting service intervals. Mercedes-Benz, for example, has this to say in its owner’s manual (MB BeVo_215.0), concluding a clear explanation of the factors that affect motor oil with the following statement: “The maximum oil change intervals indicated in the vehicle operator’s manual must be strictly observed.” The risk of damage due to failure to comply with OEM motor oil change intervals is therefore much greater NORTH-SOUTH EXPRESS COURIER Av. weight: 2.8 tonnes BUILDING CONTRACTOR Av. weight: 3.5 tonnes 100,000 km/year. 70 % long-distance operation and delivery service. Few cold starts. 15,000 km/year. Construction site operation, heavy loading, frequent engine braking. Trailer 3.5 tonnes MOTOREX MAGAZINE 107 I APRIL 2016 9



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