Go Back   EcoModder Forum > EcoModding > Hypermiling / EcoDriver's Ed
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 06-03-2008, 03:02 PM   #1 (permalink)
Legend in my own mind
 
trikkonceptz's Avatar
 
Join Date: Apr 2008
Location: Homestead, Fl.
Posts: 927

Evil Pumpkin - '08 Scion xD RS 1.0 #1633
90 day: 35.45 mpg (US)

Silent Silver Killer - '10 Honda Insight EX
90 day: 51.5 mpg (US)
Thanks: 2
Thanked 13 Times in 12 Posts
EOCing with an Automatic

Ok there is no doubt of the risks/benefits to EOCing. For the past couple of weeks I have been practicing the technique in the Vibe. For example, what the vacuum limit is for braking, taking turns, advanced crash avoidance manuevers, etc ... I now feel comfortable handling my automatic while EOCing.

What damage can this do to the tranny? Now before I start practicing it on the road I am going to do a synthetic oil flush to the tranny, but on automatics is there any long term damage to consider? I ask because EOC is the equivalent of towing behind an RV which many cars can't do especially FWD cars. Then again I will not be EOCing for hundreds of miles at a time, just to a stop on the city part of my commute and with the ignition open just engine off ...

Let me know, Thanks ..

__________________
Thx NoCO2; "The biggest FE mod you can make is to adjust the nut behind the wheel"

I am a precisional instrument of speed and aeromatics
If your knees bent in the opposite direction......what would a chair look like???





  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 06-03-2008, 03:06 PM   #2 (permalink)
Administrator
 
Daox's Avatar
 
Join Date: Dec 2007
Location: Germantown, WI
Posts: 11,179

CM400E - '81 Honda CM400E
90 day: 51.49 mpg (US)

Daox's Grey Prius - '04 Toyota Prius
Team Toyota
90 day: 49.53 mpg (US)

Daox's Insight - '00 Honda Insight
90 day: 64.33 mpg (US)

Swarthy - '14 Mitsubishi Mirage DE
Mitsubishi
90 day: 56.69 mpg (US)
Thanks: 2,478
Thanked 2,546 Times in 1,536 Posts
The generally accepted rule is that if your car can be flat towed (it should say in the manual) EOC is not going to hurt a thing. If it can't, its better to stay away from it since the engine normally runs a pump that keeps things lubricated in the tranny. Without the lube they wear faster.
__________________
Current project: A better alternator delete
  Reply With Quote
Old 06-03-2008, 03:24 PM   #3 (permalink)
FuelSipper
 
Join Date: Mar 2008
Location: Dallas, TX
Posts: 99

HondaHokie - '95 Honda Accord DX 4 door
90 day: 26.91 mpg (US)
Thanks: 0
Thanked 8 Times in 3 Posts
Here's a good flat tow guide to go by.

http://www.motorhomemagazine.com/dinghytowingguide/

I've read that if you restart the engine every 200 miles then that would help with the tranny fluid relubricating the tranny. I don't think anyone will be EOCing for 200 miles. If so let me know how you do it!!!!!
  Reply With Quote
Old 06-03-2008, 05:36 PM   #4 (permalink)
Pokémoderator
 
cfg83's Avatar
 
Join Date: Dec 2007
Location: Southern California
Posts: 5,864

1999 Saturn SW2 - '99 Saturn SW2 Wagon
Team Saturn
90 day: 40.49 mpg (US)
Thanks: 439
Thanked 529 Times in 356 Posts
trikkonceptz -

What they said.

CarloSW2
__________________

What's your EPA MPG? Go Here and find out!
American Solar Energy Society
  Reply With Quote
Old 06-03-2008, 06:23 PM   #5 (permalink)
Legend in my own mind
 
trikkonceptz's Avatar
 
Join Date: Apr 2008
Location: Homestead, Fl.
Posts: 927

Evil Pumpkin - '08 Scion xD RS 1.0 #1633
90 day: 35.45 mpg (US)

Silent Silver Killer - '10 Honda Insight EX
90 day: 51.5 mpg (US)
Thanks: 2
Thanked 13 Times in 12 Posts
So after all this reading I conclude that dinghy towing a fwd auto car would be bad over the long course because of lubrication issues.

Clearly I am talking about EOC for a distance of perhaps a 1/2 mile at a time max, changing my tranny fluid to something better than stock like Amzoil or other synthetic and actually running the car in between EOCing. I do not see an immeadiate harm ... maybe an extended range harm like in 80K miles, but no short term 2-3 years damage.

I know it sounds crazy, but I guess Ill try it till the tranny blows, then at least I change over to the 6 speed manual.

OH and if it DOES BLOW sooner, then I'll simply blame you guys ... LOL
__________________
Thx NoCO2; "The biggest FE mod you can make is to adjust the nut behind the wheel"

I am a precisional instrument of speed and aeromatics
If your knees bent in the opposite direction......what would a chair look like???





  Reply With Quote
Old 06-03-2008, 06:47 PM   #6 (permalink)
dcb
needs more cowbell
 
dcb's Avatar
 
Join Date: Feb 2008
Location: ˙
Posts: 5,038

pimp mobile - '81 suzuki gs 250 t
90 day: 96.29 mpg (US)

schnitzel - '01 Volkswagen Golf TDI
90 day: 53.56 mpg (US)
Thanks: 158
Thanked 269 Times in 212 Posts
Quote:
Originally Posted by trikkonceptz View Post
...I know it sounds crazy, but I guess Ill try it till the tranny blows, then at least I change over to the 6 speed manual...
Yah, if a manual swap is doable for you, don't show any love for that auto In fact, you should hook up a control circuit so you can select a gear and lockup the converter and see how many times you can bumpstart it
__________________
WINDMILLS DO NOT WORK THAT WAY!!!
  Reply With Quote
Old 06-03-2008, 06:56 PM   #7 (permalink)
Master EcoModder
 
Join Date: Apr 2008
Location: Earth
Posts: 303

Pushrod - '02 Chevrolet Cavalier
Thanks: 0
Thanked 8 Times in 4 Posts
Simply selecting the gear will start the car, there's no need to lock the converter. I'd choose top gear for this.
  Reply With Quote
Old 06-03-2008, 07:09 PM   #8 (permalink)
dcb
needs more cowbell
 
dcb's Avatar
 
Join Date: Feb 2008
Location: ˙
Posts: 5,038

pimp mobile - '81 suzuki gs 250 t
90 day: 96.29 mpg (US)

schnitzel - '01 Volkswagen Golf TDI
90 day: 53.56 mpg (US)
Thanks: 158
Thanked 269 Times in 212 Posts
not at slow speeds
__________________
WINDMILLS DO NOT WORK THAT WAY!!!
  Reply With Quote
Old 06-03-2008, 07:39 PM   #9 (permalink)
Master EcoModder
 
Join Date: Apr 2008
Location: Earth
Posts: 303

Pushrod - '02 Chevrolet Cavalier
Thanks: 0
Thanked 8 Times in 4 Posts
If you can do 2200 rpm @ 55mph, bump starting at 10mph will crank the engine at 400 RPM, which should be enough to revive it. Bump starting at lower gears will be increasingly violent, especially when you don't have the PWM modulation the ECU does.
  Reply With Quote
Old 06-03-2008, 07:56 PM   #10 (permalink)
Legend in my own mind
 
trikkonceptz's Avatar
 
Join Date: Apr 2008
Location: Homestead, Fl.
Posts: 927

Evil Pumpkin - '08 Scion xD RS 1.0 #1633
90 day: 35.45 mpg (US)

Silent Silver Killer - '10 Honda Insight EX
90 day: 51.5 mpg (US)
Thanks: 2
Thanked 13 Times in 12 Posts
Great input, but for my application, I am EOCing at speeds from 40mph to zero not on the hwy ... and Johnny how in the hell did you know my vehicle ran @ 2200rpm @ 55mph, you are dead on ... Just curious?

__________________
Thx NoCO2; "The biggest FE mod you can make is to adjust the nut behind the wheel"

I am a precisional instrument of speed and aeromatics
If your knees bent in the opposite direction......what would a chair look like???





  Reply With Quote
Reply  Post New Thread


Tags
automatic transmission, eoc, flat tow

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Why I'm Choosing a Civic Over a Metro Wayneburg General Efficiency Discussion 43 03-02-2011 05:11 PM
Accidental Transmission discovery (bump started my automatic) apgrok1 Hypermiling / EcoDriver's Ed 25 03-10-2008 01:38 PM
Win an EM Sticker: guess Dad's mileage (Toyota Corolla automatic). Ends Jan 13. MetroMPG Hypermiling / EcoDriver's Ed 51 02-07-2008 09:02 AM
Re-attempting Pulse and Glide (with an automatic) Lazarus Hypermiling / EcoDriver's Ed 6 12-11-2007 08:06 PM



Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2022, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com