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Originally Posted by Sameerw  The FE article is very informative, i recently bought a LOGAN petrol 1.4 GLE, can i add the premium fuel like Extra premium, Speed, etc to improve the FE or it has no benefit in this direction, some one who has been driving LOGAN since its launch please suggest, thanks |
As diabloo said, there wont be much/any difference on normal cars. But I think by using Extra premium or Speed you will get a better fuel (as they are less adulterated that normal fuel) and it will help your engine to live longer.