Car appreciation... the aesthetics, the engineering, etc

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Well_is_it

Probably been asked a million times but is the premium petrol just marketing?

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Brommers in reply to @Well_is_it

No. The higher octane can mean that in some cars the ECU can be more aggressive on ignition timing and boost levels. For a runabout shopper, it's a waste of money. For high compression or turbo engines with knock sensors and adaptive ECUs it's worth using

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Well_is_it in reply to @Brommers

So for a 1.5 TSI, probably a waste of money?

Got a long trip coming up and wondered if there was some boost in highway mileage From using RON97.

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