How much better gas mileage would I acquire within my Mercedes if I used Premium Gasoline, and not regular?

would the better gas mileage offset the cost of Premium? I'm getting around 27-30MPG's right presently, I have a 1983 Mercedes 380. It have a 3.8L V8.

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Answers:    It will actually impair your narration and mileage A lot of your mileage will depend on driving habits instead since you are getting that liberal of mileage I would say you do rather a bit of hwy miles in that saloon and the only course to do better is to keep it contained by perfect tune as resourcefully as having a extremely fluffy touch when accelerating also taking it trouble-free so you don't slow for traffic as much .

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unless your car is made for premium fuel, (supercharger, turbocharger, giant compression, advanced timing) then it will not relief performance..

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