That or something very similar ( polypropene amine?) is the source of the nitrogen in the Shell gasoline. Amines contain nitrogen atoms in their molecules. For example, Chevron Techron is a polubutene amine. The are a class of compound known as as polyolefin polyamines. If it does turn out to be advantageous, I will benefit doubly.Īll major gasoline manufacturers/ marketers such Chevron-Texaco, Exxon-Mobil, and Shell, etc have included dispersant additives in the gasolines for years. Whether this is hype or not, I am paying ~1.90 per gallon for premium gas at my Shell station which is a bit lower than what people are paying at other stations in my area, and is FAR lower than what people are paying in other parts of the country. They also claim that the new formulation is more effective on conventional fuel injectors and intake valves than the older formulation. The placement of direct injectors means that they are exposed to far higher heat than injectors placed in the intake manifold, and Shell claims that this increased heat and pressure will “result in a breakdown of some other cleaning agents”, and that the breakdown of these cleaning agents will cause deposits on the injectors. The new formulation is apparently directed mostly at the newer Direct Injection technology that will be much more common in the next generation of cars, due to the greater fuel economy that direct injection offers. I got some information on this topic from a brochure that I picked up today at the Shell station.
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