Mtjensen2 Report post Posted March 27, 2015 Apologies if this is covered someplace else. I have a 2011 FFH which I love. I'm looking at getting a newer model-2015. Should I see better MPG with the newer model year? Would it be due to different technology? TIA! Quote Share this post Link to post Share on other sites
lolder Report post Posted March 28, 2015 4 mpg better, on average. Stick with your 2011 until some issues have been settled with the newer model. It's a completely different car based on similar operating principles. Quote Share this post Link to post Share on other sites
mwr Report post Posted March 28, 2015 Stick with your 2011 until some issues have been settled with the newer model. It's a completely different car based on similar operating principles.What issues remain with the 2015 FFH? I'm not aware of any. Quote Share this post Link to post Share on other sites
acdii Report post Posted March 28, 2015 Hey may be referring to the transmission. If the OP really really wants the newer car for some reason, I second hanging on to the 2011 for now. I love driving my 13 HyTi, but the regen brakes are giving me fits, and I can also hear some odd sounds at low speeds in EV. With all the miles I drive every day, I am a bit concerned over it. Quote Share this post Link to post Share on other sites
mwr Report post Posted March 28, 2015 Hey may be referring to the transmission. If the OP really really wants the newer car for some reason, I second hanging on to the 2011 for now. I love driving my 13 HyTi, but the regen brakes are giving me fits, and I can also hear some odd sounds at low speeds in EV. With all the miles I drive every day, I am a bit concerned over it. I repeat, what issues remain with the 2015 models? Quote Share this post Link to post Share on other sites
acdii Report post Posted March 28, 2015 lack of lubrication in the eCVT when in EV mode in the Hybrid models. Until Ford can produce irrefutable proof that it is a non issue, its the one thing that can make some of us think twice. Quote Share this post Link to post Share on other sites
mwr Report post Posted March 28, 2015 lack of lubrication in the eCVT when in EV mode in the Hybrid models. Until Ford can produce irrefutable proof that it is a non issue, its the one thing that can make some of us think twice. I've read that here before. To me, that's pure speculation. Quote Share this post Link to post Share on other sites
acdii Report post Posted March 28, 2015 Well seems a couple transmissions have already been replaced, and I am questioning the one in mine now after some weird noises and regen brakes not working correctly, which is part of the transmission. Quote Share this post Link to post Share on other sites
lolder Report post Posted March 28, 2015 Yes, it's speculation but based on some interesting facts. The maximum EV speed was raised from 62 to 86 mph in 2013 to try to resolve complaints about much less than EPA mileage results by owners. This meant that the hybrid spent longer times in EV than originally designed. In the hybrid, a transmission lubricating pump only operates when the ICE is running. That was usually only a few minutes.The plug-in EnergI has the same transmission with the exception of an additional electric transmission lubricating pump that runs all the time during EV. Do you see the concern? The failures sound like bearing and gear failures. 2 acdii and hybridbear reacted to this Quote Share this post Link to post Share on other sites
lolder Report post Posted March 28, 2015 (edited) All of Ford's Gen I FEH and Gen II hybrid the 2010-12 FFH, Mercury Milan, and Lincoln MKZ transmissions were made in Japan by Aisin, a large Borg-Warner type company partially owned by Toyota. The transmission construction was brought in house to the USA by Ford for the 2013+ Ford, C-Max and Lincoln hybrids. It is supposedly "improved" but to the amateur's eye it looks the same. These are relatively simple electro-mechanical devices. They have two large 3-phase synchronous, variable speed brushless motor-generators ( MGs ), a planetary gear "power-split" device and some other gears and a differential. There are no solenoids, brushes, bands, clutches, torque converters. Nothing shifts or re or dis-engages. It's just shafts turning in bearings and gears meshing. All the complicated stuff is done by software electronically by controlling the torque, both positive and negative on the MGs. The MGs can have electrical problems with wiring but they have been almost non-existence in all the Toyota-Ford eCVT types of hybrids. The MGs are extremely high-tech. Toyota bought US motor coil winding machines in the '90's while they were developing the Prius and improved them and the construction of the MG's is now well understood and reliable. A few years ago after Ford had built about 200,000 FEH, FFH, Merc and MKZs, They said they had only 6 individual HVB cell failures ( there are 70-200 cells in a HVB ) and no MG failures.The point is this otherwise very sophisticated transmission should be intact 500 years after the car rusts away around it. Read "The Prius That Shook the World" here: http://r.search.yahoo.com/_ylt=A0LEV7swA4lUokQAimwPxQt.;_ylu=X3oDMTBybnV2cXQwBHNlYwNzcgRwb3MDMgRjb2xvA2JmMQR2dGlkAw--/RV=2/RE=1418294193/RO=10/RU=http%3A%2F%2Fwww.vfaq.net%2Fdocs%2FPrius_that_shook_world.pdf/RK=0/RS=j7A4tQjmQZjPEGHMx1liCcoZQMo- Bypass the warning and click on the "here" link. Edited March 28, 2015 by lolder 3 acdii, hybridbear and Hybrider reacted to this Quote Share this post Link to post Share on other sites
