Regular, 87 octane.  When I drive out west at higher altitudes, and regular is lower octane because of the lower oxygen pp, I use mid-grade, but I probably don't need to.  All auto manufacturers point out that a particular octane is required, and that using a higher octane does nothing for the vehicle.   DMc

---- Loren Busch <starwagen@GMAIL.COM> wrote:
> So while we are talking about additives like Techron, what gas are you
> burning in your stock WBXs?  Regular, Mid Grade, or Premium? Ignore brand
> names please.

--
David McNeely