Aww a little dipshit who can't venture outside the little webverse
that he created! How unoriginal.
Watcha done with your discovered wisdom puppy?
Throw you in the kill file with the rest of the shit of course, corny
If you want, you may test-drive a Prius.
I am surprised more people haven't.
Their conservation program teaches you a lot about where cars waste
fuel. ANY time the car would be better served by gravity, the Prius
shuts off the engine. Even on the freeway. I have been doing 70mph
in one and have had it shut gas power off. There was no need for it
as gravity was more than sufficient. And, if my speed goes too high,
I drag the brakes to put some of the excess into the batteries.
That is how hybrids work.
As far as my insulting people, I have 2 defenses: 1, that is just how
we talk around here, 2, he actually was an idiot. Somebody
crossposted a reply along the way.
On modern cars, its LESS than idling. They typically shut fuel flow OFF
on deceleration until the engine speed drops down to idle speed. So
going downhill (in gear) uses zero fuel. Going downhill in neutral
requires the engine to idle, so that would in fact use MORE fuel than
coasting in gear.
Your stupidity doesn't QUIT, does it?
What if gravity is insufficient to overcome compression losses?
In THAT CASE, you are better off shifting to neutral and letting the
engine consume at idle.
The engine speed will NOT DROP TO IDLE SPEED, you freakin moron,
because the engine is DIRECTLY coupled to the driveline via either the
clutch in a manual or the converter lockup (another clutch) in an
Put your car in automanual mode. Put it in FIRST GEAR. Evaluate the
decleration rate on a LEVEL road from any given speed versus first or
second if you do NOT understand engine braking! You will find that
RPMs typical of highway speeds in top gear involve actually fairly
HIGH levels of engine braking.
You should immediately notice DECREASED compression braking when you
put the car into 2nd versus 1st. This is WHY you downshift to slow
GD, I do this thing every fking day I drive the kids to school. I put
the VW into 3rd on a particular decline and let it engine brake to max
at <40mph so the cops with lasers at the bottom won't tag me. If I
let the transmission select a higher gear or I did so myself, I would
exceed the speed limit.
The car MAXES out on this decline around 38mph in 3rd gear. If I
desire to go FASTER, I MUST use fuel! If I shift to 4th, RPMs drop,
compression braking lessens and I can roll to a higher terminal speed
at which, if I desire to go faster, I must EITHER increase
acceleration or decrease deceleration. That could be accomplished by
upshifting OR pressing on the accelerator.
EITHER WAY, gravity is competing against engine compression and drag.
Do you people even drive cars or are you just idiots? YES, there ARE
hills in which drag + engine compression > gravity, therefore you MUST
use fuel or ELSE you remove engine compression as a decelerative load!
It will still have contributed something to keep the engine ticking over,
thereby requiring the less use of fuel. Or was it a trick question? That
was too easy. Another one! Try to make the next one an actual challenge.
| >> On modern cars, its LESS than idling. They typically shut fuel flow
| >> OFF on deceleration until the engine speed drops down to idle speed.
| >> So going downhill (in gear) uses zero fuel. Going downhill in neutral
| >> requires the engine to idle, so that would in fact use MORE fuel than
| >> coasting in gear.
| > Your stupidity doesn't QUIT, does it?
| > What if gravity is insufficient to overcome compression losses?
| It will still have contributed something to keep the engine ticking over,
| thereby requiring the less use of fuel. Or was it a trick question? That
| was too easy. Another one! Try to make the next one an actual challenge.
Watch this space:
Name me ONE vehicle on the market which leaves the torque-convertor
lockup clutch engaged upon deceleration.
What part of the principle of conservation of energy do you not
understand? The energy required to keep the engine rotating HAS to come
from somewhere. It can either come from a slight drag on the car, or
from burning fuel directly. There's no magic savings which you presume
Now if you switch to neutral and shut the engine OFF, you will save (a
miniscule amount) of fuel, but its illegal in most areas to do so
because you now have less control of the vehicle.
Dumbass! He's already explained to you that the RPM will drop REGARDLESS of
whether or not the car is slowing. You don't seem to understand the term
Really? Next you'll be explaining what a 'clutch' is.
You're probably able to compare respective fuel consumptions to determine,
of your driving styles, which is the more fuel efficient, but you don't show
much competence in explaining why your results are the way they are. No, a
video wouldn't help. The narration would likely be equally idiotic.
This is absolutely false. The TC won't typically unlock until the TQ
gets nearer to stall speed in highest gear. Not even close.
VWs will even DOWNSHIFT for you as you engine decelerate.
Most cars will UPSHIFT if you are not under load!
The point is only relevant when the car requires fuel IN GEAR to
overpower engine compression.
AGAIN, this goes back to why hybrids do what they do. In MANY cases,
at HIGHWAY speeds, where UPSHIFT is not possible, you will do better
rolling out than using fuel because engine compression is a
SIGNIFICANT decelerative load.
To prove this, merely HOLD A GEAR and step off the fking gas. Just
let up. Use a manual transmission if necessary.
Hell, guys, I do this shit every fking day on one particular downhill,
exit 8B on I395N, Rt 27 to the memorial bridge. It's a freeway, ramp,
top gear, 6th in the Phaeton. I can either use fuel to drive down it
or let the car out of gear and coast. If I do the latter, yes, I gain
a little bit more speed (obviously), but I can WATCH the fuel meter in
real time, and my rollout when the grade lessens is like a freaking
mile instead of having to go back onto the gas at the bottom of the
These things are so easy to prove for yourselves, that I do not know
why you bother arguing them.
TQ? What does a Thermoquad carburetor have to do with anything.
I'm not going to argue with you, Travis. ANYONE here can validate what
I'm saying by just hooking up a diagnostic scan tool and monitoring the
TC lockup circuit, or by reading various SAE papers in recent years on
how transmission controllers operate. I've got nothing to prove.
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