manual vs. automatic

[Yaris Hilton]

So does everyone else have those "up to 10% ethanol" labels.

[firemachine69]

Originally Posted by Yaris Hilton

So does everyone else have those "up to 10% ethanol" labels.

Federally mandated, as far as I know up here, and I believe you folks down south aren't too far behind us...



The main benefit to E10 is that it makes injector cleaners a thing of the past (they might even damage the injectors if they're already clean! )

Main drawback, is of course, the slightly lower gas mileage.


Depending on how many cold starts I'm doing, I'm averaging 35-36 MPG in the city, 40'ish MPG on pure highway (4dr. LB auto). Lately I've been doing these two mile jaunts to work, shut it down for a few days, come back from work, two mile jaunt, etc. I'm looking at the gas-gauge and I know the MPG is gonna be hurtin'. On the flipside, I'm down to half a tank, but my last fill-up was on July 9th.

[STC]

Originally Posted by firemachine69

Federally mandated, as far as I know up here, and I believe you folks down south aren't too far behind us...



The main benefit to E10 is that it makes injector cleaners a thing of the past (they might even damage the injectors if they're already clean! )

Main drawback, is of course, the slightly lower gas mileage.


Depending on how many cold starts I'm doing, I'm averaging 35-36 MPG in the city, 40'ish MPG on pure highway (4dr. LB auto). Lately I've been doing these two mile jaunts to work, shut it down for a few days, come back from work, two mile jaunt, etc. I'm looking at the gas-gauge and I know the MPG is gonna be hurtin'. On the flipside, I'm down to half a tank, but my last fill-up was on July 9th.

Ethanol is also known for condensation. Older vehicles and carburator vehicles have a rough time. The shelf life of ethanol is poor compared to MTBE.

Cheers!

[Fastskiguy]

Doesn't it take the same amount of energy to accelerate the car from 0 to 60 or whatever no matter how fast or slow that acceleration happens? And aren't motors a little more efficient in the rpm range where the torque is highest? And finally, isn't your top efficiency at the lowest speed where you can be in your highest gear? So....wouldn't relatively quick acceleration up to 40mph or wherever you drop into 4th or 5th (depending) be the best? I've heard 3/4 ths of the throttle mentioned before.

What's your take on this?

Joe

[jcboy]

Originally Posted by Fastskiguy

Doesn't it take the same amount of energy to accelerate the car from 0 to 60 or whatever no matter how fast or slow that acceleration happens?

What's your take on this?

Joe

Hey Joe, i'm Joe too.

No it doesnt. Physics alone will tell you that you need more force to accelerate a body with the same mass faster.
F=m(a)
Higher a, bigger F.
W=F(d)
Work is directly proportional to Force, hence higher a, more Work.

Work is practically energy, so theres your answer.

Sent from my G9208SS using Tapatalk

[sickpuppy1]

Originally Posted by Fastskiguy

Doesn't it take the same amount of energy to accelerate the car from 0 to 60 or whatever no matter how fast or slow that acceleration happens? And aren't motors a little more efficient in the rpm range where the torque is highest? And finally, isn't your top efficiency at the lowest speed where you can be in your highest gear? So....wouldn't relatively quick acceleration up to 40mph or wherever you drop into 4th or 5th (depending) be the best? I've heard 3/4 ths of the throttle mentioned before.

What's your take on this?

Joe

The basic is this,"A body at rest tends to want to stay at rest and a body in motion tends to want to stay in motion."
If you have a heavy object and you want it to go X mph in a hurry it takes multiple X time more energy to get it there.
If you have to push a car you can lean on it and get it rolling and then walk it forward . Or if your in a hurry and push real hard to get it going NOW it works too but takes alot more energy to do it that way. Its heavy and it doesnt wanna move so it take effort to get it going, much how much effort depends how power you throw at it.