|
01-02-2014, 07:41 PM | #1 |
Drives: 2010 Yaris Sedan Join Date: Oct 2013
Location: the good Carolina
Posts: 173
|
trans improvement and mileage
I noticed before, my mileage average for my driving style, I get 28 mpg city and 38 mpg highway. I am a spirited driver. I just wanted to share, I have flushed my transmission (around 71k miles), first time per records (I bought the car at 68k). While driving before the flush, I thought it shifted just fine. I didn't like the way the fluid looked, it looked about mid quality, and thought a flush would do it good. I underestimated. I notice now, it shifts seamlessly. I can almost guarantee I get better mileage, and will report back my averages. I typically do not go far (it may take a month), but will report back the mileage gains, if any. Based on how much better it shifts (went from good to great), I predict I get at least a 1 mpg gain. Just wanted to share so as to help in the quest of great mileage. Me, coming off a 94 Caprice wagon (15 city/23 highway which is fantastic for that big of a car, by the way), I am still in the ecstatic with what I have phase, knowing some of you are getting 50 mpg. I flushed with a graduated bucket, and stock WS fluid, 8 quarts, then a half a quart to top off from spillage.
__________________
2010 Yaris sedan, TRD CAT back (sport muffler only, really), OBX header (relocated front AF sensor to front pipe), OBX throttle plate spacer, K&N filter (in stock air box-for now), TRD struts and shocks, Mexico Rough Road Springs x 4, new Yota sway bar links front, slotted/drilled rotors and Maxx brakes front, Valvoline synthetic brake fluid, 3M undercoated, 16" Konig Feathers Michelin Pilot Sport AS 3 + Tires TRD rear sway bar, 4 GT Spec bars including: front strut brace 2 point, 4 point ladder brace, mid chassis brace and rear lower tie brace, rear hitch, [B] |
01-03-2014, 07:19 AM | #2 |
Drives: toyota yaris yrs Join Date: Jun 2007
Location: Sydney
Posts: 642
|
Can you do a DIY on how to flush the tranny? i thought i would ask because I have no shame..
|
01-05-2014, 12:20 PM | #3 |
#CarFiend-HANZO188
Drives: 2011 Toyota Vios Join Date: Oct 2012
Location: Wintergarden, FL
Posts: 208
|
I second that. I'm considering flushing the fluids out.
__________________
I N S T A G R A M- @Hanzo_Stmpng_Grnds x-Check out my build thread-x HANZO's Build Thread |
01-05-2014, 01:54 PM | #4 |
Drives: 2007 red Yaris HB AT Join Date: Dec 2013
Location: southeast USA
Posts: 197
|
|
01-05-2014, 10:18 PM | #5 |
Drives: toyota yaris yrs Join Date: Jun 2007
Location: Sydney
Posts: 642
|
|
01-06-2014, 03:43 AM | #6 | |
Drives: peArL yAvItZ!! Join Date: Jul 2009
Location: *tIny dOts iN AsiA*
Posts: 156
|
Quote:
As oil age due to heat and constantly moving... the oil will lose it properties and get thicken up over time... Maybe 80k and above... Once the oil properties is weaken and viscosity get slightly thicker, your car mile per gallon will be affect. The principle is the same like a engine oil. People to tend to feel "lighter" and get better mileage after engine oil change. Just that our gearbox oil last longer than our engine oil. P.S. If we constantly change the gear oil within the service period, we may not be able to feel the different. But if owner doesn't follow the service period, say 100k over mile. Changing the gear oil will make you feel the different. The effect is more drastic for Auto gearbox than Stick gearbox.
__________________
1NZ-FE Yaris with JDM RS front & rear bumper | JDM Vitz RS taillamp | JDM Vitz window visors | JDM Vitz Netz logos | JDM leather steering wheel & shift knob | 4k HID | K&N panel filter | Fujitsubo Wagolis exhaust | NST 10% crank pully | KYB Excel-G shocks | NF210 Springs | Cusco 4 points lower arm bar & Type OS top struct bar | RZCrew sub-frame collars | Ultra Racing 19mm rear sway bar & rear lower & center braces | PG Rear 13mm hub spacers | Exzess 2-pot calipers with 282mm rotors | Runstop Rear Disc | SSR Semi-Forge Type F 15" rims | Michelin Pilot Sport 3 195/55/15 tyres |
|
01-06-2014, 09:05 AM | #7 |
Drives: 2010 Yaris Sedan Join Date: Oct 2013
Location: the good Carolina
Posts: 173
|
DIY and iteration
I did post in another spot, the DIY here:
http://www.yarisworld.com/forums/sho...t=25393&page=4 I can further iterate if need be, let me know. (the diy part) My mileage thoughts are simply this. I noticed it shifted fine before. Then, it seemed to be seemless or more seemless afterwards. My thoughts there, Toyota, like many other car makers, moved away from the 2 speed and 3 speed trannys. They did so for trannny life, but also a ton of efficiency was found for many reasons. One is lower rpm rises to get to highway speed or speed (fuel mileage gains). Another is for durability. Anyway, I would imagine, if the shift is going smoother, happening quicker and more seamlessly, one would get better mileage, and of course prolong the tranny life. Another good reason to flush (not manuals / automatics) (drain and fill manuals, no better mileage there, just longer gear/trans life). Anyway, trans fluid in the autos, especially the WS fluid is very Hygroscopic (water absorber). So, even if low miles, over time, will be a different viscosity and nasty. My wife's 07 Camry XLE, we bought it with 27k last year, V6 auto. I did a drain and fill on it when we got it and that fluid was gross (time and hygroscopic properties did that). I will flush it by 50k. So, like I said, not sure on the mileage gain, but, based on how mine shifted before and after, I think I might get something out of it. Hope so, just wanted to share what I found mainly with shift quality.
__________________
2010 Yaris sedan, TRD CAT back (sport muffler only, really), OBX header (relocated front AF sensor to front pipe), OBX throttle plate spacer, K&N filter (in stock air box-for now), TRD struts and shocks, Mexico Rough Road Springs x 4, new Yota sway bar links front, slotted/drilled rotors and Maxx brakes front, Valvoline synthetic brake fluid, 3M undercoated, 16" Konig Feathers Michelin Pilot Sport AS 3 + Tires TRD rear sway bar, 4 GT Spec bars including: front strut brace 2 point, 4 point ladder brace, mid chassis brace and rear lower tie brace, rear hitch, [B] |
01-08-2014, 06:16 PM | #8 |
Drives: 2010 Yaris Sedan Join Date: Oct 2013
Location: the good Carolina
Posts: 173
|
1st tankful, 30.15 mpg, that beats my city average of 28 mpg. I don't plan on a highway venture until I can drive up to PA without any snow or ice, so maybe next month, maybe not. But I will report mileage as I fill up what my mileage was. I am psyched, it may be a good thing for mileage, besides the real reason of trans longevity.
__________________
2010 Yaris sedan, TRD CAT back (sport muffler only, really), OBX header (relocated front AF sensor to front pipe), OBX throttle plate spacer, K&N filter (in stock air box-for now), TRD struts and shocks, Mexico Rough Road Springs x 4, new Yota sway bar links front, slotted/drilled rotors and Maxx brakes front, Valvoline synthetic brake fluid, 3M undercoated, 16" Konig Feathers Michelin Pilot Sport AS 3 + Tires TRD rear sway bar, 4 GT Spec bars including: front strut brace 2 point, 4 point ladder brace, mid chassis brace and rear lower tie brace, rear hitch, [B] |
01-14-2014, 10:18 AM | #9 |
Drives: 2010 Yaris Sedan Join Date: Oct 2013
Location: the good Carolina
Posts: 173
|
about 1.9 mpg different
I had a change in plans, and ended up going from Charlotte area to Burnside, KY last weekend. Driving route 85 to 40, through the mountains and up 75, through more mountains (not like Rockies, but steep enough / 20 miles @ grades), anyway, a decent test. The mileage I got 39.80 and 39.84.
So, given both city and highway testing post flush at 70k miles (first time) has brought me an overall 1.8 mpg gain. Not bad. I just wanted to share. Makes me want to do the wife's Camry sooner. (drain and fill done when bought, 30k-ish) Probably do hers between 40-50k, realistically. Mine, next flush on trans will be 30-35k, pending how the fluid looks and mileage is. I like to be proactive and am kinda like Tim Allen, over-do-er. I would say flushing at 30 - 60k, would be good, depending on use. I haul weight at times, and am spirited in between Home Depot / Lowe's trips. So, for me, closer to 30k is better. I like to go by color of fluid and feel of trans and habits (use). Hope this helps someone. Done reporting mileage and satisfied with results on my automatic. Manual would not get these results, but manual drivers have the mileage edge, if shifted per OM.
__________________
2010 Yaris sedan, TRD CAT back (sport muffler only, really), OBX header (relocated front AF sensor to front pipe), OBX throttle plate spacer, K&N filter (in stock air box-for now), TRD struts and shocks, Mexico Rough Road Springs x 4, new Yota sway bar links front, slotted/drilled rotors and Maxx brakes front, Valvoline synthetic brake fluid, 3M undercoated, 16" Konig Feathers Michelin Pilot Sport AS 3 + Tires TRD rear sway bar, 4 GT Spec bars including: front strut brace 2 point, 4 point ladder brace, mid chassis brace and rear lower tie brace, rear hitch, [B] |
01-17-2014, 01:36 AM | #10 |
Drives: 08Yaris2D, 88LandCruiser. Join Date: Jan 2013
Location: Alameda,Ca.
Posts: 476
|
Fluid flush will not get you 50 MPG. I can't believe anyone is getting anywhere near 50mpg from a 1.5L engine. My best on a flat trip of 400 miles was 43 mpg, but I never broke 60 mph for the whole trip. And I flushed my trans last year.
__________________
Give a man a fish, and he'll eat for a day. Sell a man a fish, and you'll both eat for a day. |
01-17-2014, 06:04 AM | #11 |
Drives: 2014 yaris 5 speed Join Date: Aug 2006
Location: michigan
Posts: 642
|
I don't know about 50, but my lifetime average on my manual 2013 is 43.4....not too hilly, mostly 45-60 mph light suburban and rural commuting, 10% city (true city, sitting at lights, not moving for minutes at a time).
|
01-17-2014, 08:21 PM | #12 |
Drives: 2('14+'07)MT 3d ,wHandCrWndws! Join Date: May 2009
Location: S.MontgomeryCnty,TX(HoustonMSA) '07=BayouBlue=300,125miles=OrigOwnr '14=ClassicSilvr=29,059miles
Posts: 4,839
|
I've had many tanks over 43 MPG, also probably never breaking 60 MPH and going 55 MPH much of the time.
|
08-01-2014, 02:41 PM | #13 |
Drives: 2010 Yaris Sedan Join Date: Oct 2013
Location: the good Carolina
Posts: 173
|
I got 44 mpg, and half an hour was stuck in Charlotte traffic. That was on super gas. Not worth the effort, especially if it doesn't ping on regular gas. Typically get 29.5/39.5 depending on vehicle load (goin to beach with it jam packed netted me 33 mpg average. So, weight loss is at a prime for the hyper milers, FYI....
__________________
2010 Yaris sedan, TRD CAT back (sport muffler only, really), OBX header (relocated front AF sensor to front pipe), OBX throttle plate spacer, K&N filter (in stock air box-for now), TRD struts and shocks, Mexico Rough Road Springs x 4, new Yota sway bar links front, slotted/drilled rotors and Maxx brakes front, Valvoline synthetic brake fluid, 3M undercoated, 16" Konig Feathers Michelin Pilot Sport AS 3 + Tires TRD rear sway bar, 4 GT Spec bars including: front strut brace 2 point, 4 point ladder brace, mid chassis brace and rear lower tie brace, rear hitch, [B] |
10-08-2014, 11:58 PM | #14 |
Oil that has lost its lubricating qualities and it's viscosity will cause drag on the drive line decreasing fuel economy. Synthetic lubricants should also have better qualities and increase fuel mileage
|
|
10-14-2014, 04:07 PM | #15 | |
Drives: 2010 Yaris Sedan Join Date: Oct 2013
Location: the good Carolina
Posts: 173
|
Quote:
But, for me, I will just use what it calls for.
__________________
2010 Yaris sedan, TRD CAT back (sport muffler only, really), OBX header (relocated front AF sensor to front pipe), OBX throttle plate spacer, K&N filter (in stock air box-for now), TRD struts and shocks, Mexico Rough Road Springs x 4, new Yota sway bar links front, slotted/drilled rotors and Maxx brakes front, Valvoline synthetic brake fluid, 3M undercoated, 16" Konig Feathers Michelin Pilot Sport AS 3 + Tires TRD rear sway bar, 4 GT Spec bars including: front strut brace 2 point, 4 point ladder brace, mid chassis brace and rear lower tie brace, rear hitch, [B] |
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
decrease in mileage | wombatyaris | Fuel Economy Forum | 21 | 01-27-2010 03:21 PM |
Better Mileage With A Spoiler?? | MadMax | Fuel Economy Forum | 7 | 05-25-2009 04:53 AM |