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I picked up a pamplet from Shell, and it says that It is a unique patented improved formula designed to SEEK and DESTROY enging gunk. It also acts as a barrier to help keep your engine clean and protect it from preformance robbing gunk even better than before. It helps improve engine preformance as you drive, has been extensively tested, clocking more than a half million miles, covering a wide range of engines and vehicles, conventional, modern, and hybrid engines.The 89 grade has the lowest amount, the mid range has a little more added, and the 93 octaine Vpower contains the highest concentration for maximum engine protection, and destroys gunk buildup even faster than any other Shell Gasoline to maintain peak preformance.
Nightrider1
Addition:
Shell claims that its nitrogen-enriched gasoline cleans better than before and protects better against engine buildup. Of note, all three grades of gasoline will contain the nitrogen-enriched detergents, with its V-Power premium grade containing five times the government-mandated amount. The results are fewer intake deposits, cleaner combustion chambers, and less fuel injector fouling and intake valve sticking.