Of course it does. There's only so much extra energy in the fuel, and only
so much extra thermal efficiency in the engine. Beyond that, more power more fuel = poorer fuel consumption.
People see figures such as 150bhp, 250lb/ft and 50mpg, and think they can
all be achieved at the same time. Yeah right. (Not saying it's a bad thing
that one engine can achieve all three, however.)
Just trying to get to work on time as fast and as cheap as possible.
Mmm. I have a turbo diesel, and the engine itself is super reliable.
You need to DESIGN for a turbo, you can't just strap one oin and hope.
I drove a Mondeo TD some time back. Pretty good car really, although the
power band was a tad narrow. Changing down didn't net you extra power
like a petrol: Concversely you could pull in quite high gears rather
well, as long as you were over the turbo kick in level.
PETROL IN A DIESEL WILL WARP THE HEAD IF NOT BLOW THE THING AWAY
ESPECIALLY SUCH A STRONG MIX.
TAKE THE FUEL LINE OFF AND PUMP IT OUT WITH THE ELECTRIC PUMP OR BUY
ANOTHER ELECTRIC FUEL PUMP FOR SUCH EMERGENCIES FROM A SCRAP YARD.
DRAIN INTO A DRUM AND GIVE IT TO A TREE SURGEON OR SOMEONE WITH A TWO
The AA will charge an arm and a leg for doing the above even for it's
most respected members. Disposing of the fuel is the problem. You can
use the fuel in a petrol engine but slip it in one gallon at a time
when you fill it up.
You should be fine. One of our diesel lease Focus's at work keeps getting
petrol in it. According to Ford it can run at about 30% petrol. However
keep topping up with diesel (ie. it dilute the mixture) and you should be
I used to have a Montego Countryman estate with that noisy but incredibly
frugal Perkins 2L engine. The handbook advised up to 25% petrol in cold
weather - and using leaded fuel sure quietened it down as well. Must mean
Probably not. Diesel's will usually burn any old filth. They're second only
to gas turbines (jet engines) in their tolerance. Your typical jet will burn
anything from propane, through petrol to the remains of your chip pan
without skipping a beat, or even noticing the difference. Diesels aren't far
The reason diesels are so tolerant is because the fuel is directly injected
into the compressed air and spontaneously combusts with precise timing. In a
petrol engine, the fuel is premixed and must be kept from burning until the
spark comes along. It needs high octane fuel for the fuel air mixture to not
be too impatient and blow before the spark.
In normal use they definitely do mix. An old truck drivers' trick to prevent
diesel freezing (from the days before 'anti-freeze' in diesel was standard)
was to put a few gallons of petrol in the diesel during cold snaps. This
does work, and - I think - proves they mix.
That's not to say that if you mixed the two and left them untouched for a
few days they wouldn't start to separate out.
I read on some 'reputable' site (AA or RAC I think) that up to 20% of petrol
in diesel was quite safe. Or vice-versa, if your petrol engine would run
with however much diesel you'd put in it, that was safe also. I shudder to
think of the smoke it would knock out though!
"MartinC" < email@example.com> wrote in message
Getting a little off topic, but since we're banging on about cars, does
anyone know what the music is from that new Peugeot 205 add? It's been
annoying me for days, sounds familiar ... very moody track??
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