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Does ECO mode really save gas?

Art Vandelay

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HeyBales

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Wow, I guess I just don’t get it. I always thought slippery mode was for snow in winter. I guess my 24 XLT FX4 manual is wrong? Mud/ruts, sand, I’m so confused! 🤔
And if your terrain allows - the more coasting the less the engine is running in a hybrid.

Now - one could also fiddle with getting the gas pedal pressed in just the right amount in Norm or Eco modes and obtain the same thing, but it allows not having to focus on that part of driving that much.

With only FWD - it changes nothing but how much power you get out of the same amount of pedal press, and how well it coasts with no friction from regen.

I'll bet that mode for you may effect the tranny/engine braking too if they attempted something.
Try it sometime.
 

CD_SM

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Regular mode the engine says, "Oh, you want to go someplace? OK."
ECO mode the engine says, "You want to go someplace? Hold on a sec, I'll be with you soon."
SPORT mode the engine says, "Yeehaa, we're out of here!!"
And slippery mode says, "Did you say something? Sorry I'm a little hard of hearing. Say it again louder. Did you say you want me to slow down?" Me: " No I want to STOP!" Truck: "Sorry you have to YELL".
Scared the crap out of me the first time I tried it.
 

Ozarkbeard

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You use slippery mode on dry pavement?
In my Hybrid I certainly do in most cases. I get slightly better MPG with it, than ECO.

If I'm on certain stretches of 2-lane highway w/ passing available, I'll use Tow/Haul instead. Better acceleration for passing, and none of the fake shifting of Sport mode.
 

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MakinDoForNow

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In hybrid slippery mode also appears to less aggressively resume set speed after slow down as well as to help some on cruise mpg but only if cruise is set to 60-62 or less. Select instantaneous mpg to watch mpg as it's actually happening. When it switches ice on and off you can see as high as 999 mpg as well as 0 mpg.🤗
 

MakinDoForNow

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In my Hybrid I certainly do in most cases. I get slightly better MPG with it, than ECO.

If I'm on certain stretches of 2-lane highway w/ passing available, I'll use Tow/Haul instead. Better acceleration for passing, and none of the fake shifting of Sport mode.
I use slippery quite frequently, have not measured hybrid brake rotors, do not know if front and rears originally have same pad thickness but if they do my rears appear to be wearing faster than fronts. So I wonder if slippery mode uses rear brakes more than other drive modes? Look at yours if convenient???
 

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I use slippery quite frequently, have not measured hybrid brake rotors, do not know if front and rears originally have same pad thickness but if they do my rears appear to be wearing faster than fronts. So I wonder if slippery mode uses rear brakes more than other drive modes? Look at yours if convenient???
I looked at them not too long ago and really couldn't see any visible difference between all of the pads. In fact, they didn't look visibly worn at all. And I haven't noticed any brake dust on the wheels. Are you having a problem with brake dust?

Even though slippery mode uses a little less regen than Eco mode, it still provides a lot of regenerative assist, when applying the brakes.
 

MakinDoForNow

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I looked at them not too long ago and really couldn't see any visible difference between all of the pads. In fact, they didn't look visibly worn at all. And I haven't noticed any brake dust on the wheels. Are you having a problem with brake dust?

Even though slippery mode uses a little less regen than Eco mode, it still provides a lot of regenerative assist, when applying the brakes.
No brake dust problem just appeared to be less thick than front ones. I'll check further.
ETA: I was thinking maybe rears were being individually applied to counter slipping.
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