Octane column: Meh.

[DrDeth]

Oddly, you can- if the savings are worth it- fill your tank with half of each. :smack:

[AncientHumanoid]

@engrken

I enjoyed the treatment of octane ratings but would like to add some detail that might be useful. The distinction between detonation and pre-ignition…

>SNIP<

Detonation and the silent killer pre-ignition are separate processes which can occur in any combination.

Thanks, Ken. I was going to highlight this little miss myself, but I couldn’t find a reliable cite (other than my brother the mechanic).

BTW, welcome on board! Hope you decide to stay.

[Mathochist]

@Maus Magill

Yesterday, I decided to RTFM. According to VW, I should be using 91 (R+M/2). The only flavors availible to me are 93 or 89, so is it better to go up two points or down two points?

Switch off buying premium and regular?