[Miata] Regular vs Premium after 2001

[Robert McElwee]

Sure you can speak generically. I am not talking about a "fancy" engine (no
need to list all variables) but a regular car engine. In general, an
internal combustion gasoline engine is pretty much the same in any vehicle.
The laws that govern fuel consumption would be the same so octane should
affect all of them similarly. I would be completely amazed if you told me
that higher octane would give you 25% better fuel economy in a 75 Pinto but
25% worse fuel economy in a 75 Vega. There cannot possibly be that large a
difference between engines so generic rules have to exist.

Yes, I am in 100% agreement that you use what your manufacture tells you to
use. You would be crazy not to. My truck 93 is recommended but you can use
anything you want - so I do and opt for the cheaper fuel. Loan me you
ScanGauge II and I'll do some tests!


On Dec 4, 2007 11:09 PM, Dillon <dillon.boyer at gmail.com> wrote:

> On Dec 4, 2007 6:23 PM, Robert McElwee <miatamail at gmail.com> wrote:
>
> > In my heart, I believe if higher octane fuel gave you better mileage
> > (talking in general terms here - not specifically about a Miata with VVT or
> > anything) the ads for a new Honda Civic would tell you to run higher octane
> > to get optimal fuel economy.
>
>
> Your best bet is to use what the manufacturer tells you to use, whether
> it's a civic or a truck or a Miata.
>
>


-- 
Robert McElwee and Red Beast
1991 T25 Turbo @ 15 PSI
Link ECU, FM IC, 9:1 pistons
Over 350 lbs of "added lightness"
www.lightweightmiata.com

Lightweight Miata Forum:
http://lightweightmiata.com/forum
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