[s-cars] S6 Mileage

[Larry]

My MRC Stg 2 was street tuned on 93 (silly, silly me) and even mediocre 93 gets a tiny bit of tip in pull back (read, knock) so I'm not sure if I'd really want to push the octane limit.

My $0.02

sent from my iPod


On Mar 26, 2012, at 4:12 PM, Tom Heitzman <gyro at stuffinder.com> wrote:

> After seeing Steve M's figure for mileage I came to the realization that I'd
> forgotten the slow introduction of, but now, nearly, ever present dread
> Ethanol into our fuel supply. I know that my vehicles get noticeably better
> fuel mileage WO Ethanol. There are only two Ethanol free gas stations extant
> in my general driving area, in Penn Yan & Utica NY. Both offer  89 Oct only
> so I usually try to  have some 93 Oct in the tank for mixing. BTW If not
> pushing the engine into full boost very often is 89 Oct OK w/MRC 2 or a
> strict No-no? I've run it a few times and haven't heard any detonation but
> my hearing is not the best!
> 
> 
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