I wish now I'd kept all the raw data. It would have been over a period
of almost a year (as a tank lasts me about a fortnight) and I honestly
can't remember what time of year I fitted it. However I was wary of the
fact that any apparent long-term improvement might be due to seasonal
weather change. I remember noting at the time of fitting the Ecotek that
there did *appear* to have been a step change improvement of a few MPG,
comparing the last few tanks before the fill-up with the first few
I haven't been keeping a careful fuel log for a while, but there'd be no
problem starting again.
Doubt it. <pedant> It's a dual carriageway :-) </pedant>
Interesting - are you saying then that there are modes in which a device
like this could reasonably be expected to improve MPG on older engines
without ill effect? (No offence taken about the tough-as-old-boots Skoda
engine, BTW - camchains, don't you just love 'em? My Skoda is a
political statement on wheels - "THIS IS JUST A FORM OF TRANSPORT"!)
The valve is set to start opening (ϊrting) just above idle, so I can't
rule out some effect. But it's not something I'd swear to. It just seems
that bit more willing to take a certain couple of roundabouts in 3rd
Cheers, snipped-for-privacy@SNAKEOILDEVICEiee.org (remove snake oil device to reply
Potentially, yes. If the engine is set to run slightly rich on a
cruise, say lambda 0.95 (ie 5% excess fuel), and you add extra air via
the Ecotek to bring it back to lambda 1, you'll get an economy
improvement. You would also get the same improvement by simply
retuning your engine, though, without the cost and farting noise!
Crucially, post-1993 all petrol cars in Europe have been fitted with
lambda sensors to accurately control the mixture to lambda 1 under all
normal running conditions. Hence this mode of operation is no longer
The point is that at WOT the manifold vacuum is essentially zero, and
so there is no pressure to drive air through the Ecotek valve. So
there isn't any flow, and so it can't have any effect.
(replace "nospam" with "fuel" to reply)
Training of the right foot will do a whole lot more good. Look ahead
and drive smoothly so you don't throw away fuel accelerating only to
use it few seconds later heating the brakes.
Spamtrap reply domain as per NNTP-Posting-Host in header
Can of worms - what every fisherman wants.
Can of worms - what every PC owner gets!
I can think of many reasons.
It was stripped totally of sound insulation, carpets, electric windows
etc, and all creature comforts. It used special low friction tyres and say
drum brakes adjusted to give zero fiction when not in use. It was so high
geared to make driving a nightmare. It was built out of foil to also save
weight. The engine couldn't pass modern emission regs.
*You're just jealous because the voices only talk to me *
Dave Plowman email@example.com London SW 12
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