Proving Mobil 1™ lubricant technology in the lab
After simulating driving 120,000 miles with extended oil drain intervals, which translates to about 80 daily stop-start cycles, ExxonMobil engineers determined that Mobil 1 ESP Formula 5W-30 demonstrated excellent performance while providing wear protection under extreme stop-start operations.
Every stop saves: Conserving fuel with stop-start systems
However, it’s challenging to estimate what impact stop-start technology will have on mpg. For drivers with stop-start systems, there will be varying results toward fuel economy. In fact, the Environmental Protection Agency (EPA) fuel economy estimates does not factor stop-start into its mpg ratings. Factors like driving conditions and driving style can have a considerable impact on mpg. Many engineers estimate about 3 to 10 percent, which could add a couple of mpg (e.g., 20 mpg in city driving improves to 22 mpg).
Meeting the demands of stop-start
Also, many different starters and batteries can support stop-start systems, but the internal combustion engine design remains the same, requiring enhanced protection from the extra loads on the crankshaft and rod bearings created by frequent stop-start cycles. Some car makers have even begun applying protective coatings on these bearings to address the potential for increased wear. Mobil 1
Mobil 1™ for modern engines
Your engine is a complex machine with hundreds of moving parts that operate under a wide range of temperatures and stressors. The oil you select needs to be equally capable of coping with these operating conditions to protect your engine against wear, corrosion, and the build-up of dirt and depositsLearn more