Unless it's effectively required in order to avoid knocking, resorting to an octane rating higher than specified is overkill. It won't do any actual harm, but it's also not so likely to improve fuel-efficiency at all.
Quote:
Originally Posted by Zunigrijje
I'm driving a Suzuki Celerio
|
Lots of those in Uruguay. Besides a car being generally quite expensive there, fuel costs are also a PITA, leading many Uruguayans to fill up at the Brazilian side of the border, even though the ethanol content here is around 22 to 27%.