Elmo P. Shagnasty wrote:

> In article <1jfl1zo9zf0s1.dlg@ss.me-privacy-net.com>,
> "S.S." <me@privacy.net> wrote:
>
>>Just use the "Regular 87". Using higher octanes won't harm the engine, but
>>it will definitely harm your wallet.
>
> Higher octane fuel, in fact, will lead to *less* gas mileage for that
> car.

IIRC the V6's will do better on premium petrol. They include sensors to
notice the reduced tendency to knock & will optimize timing to take
advantage of it. (been discussed previously on this NG)