Why a 4spd not 5spd AT - Toyota Yaris Forums

eTiMaGo · 01-25-2009, 10:11 AM

Quote:

Originally Posted by watersoilair

Wouldn't the 4 speed transmission get poorer fuel economy over speeds of 90km/hr? I was told that 5th gear is like an overdrive of sorts. For instance.

If I were to drive 90km/hr in 4th gear it would definitely be at 3000 no questions asked. If I were driving in 5th gear at 90km/hr it is ~2700rpm. The split seems to happen ~85km/hr when both 4th and 5th gear runs at 2500rpm.
The tach gradually moves up to 3000rpm and above as I drive faster. ~3300rpm at 120km/hr and ~3500 at 140km/hr.

Then again, on the 5 speed manual, we run at about 3000RPM at 100km/h too... I think the gear ratios for AT4 and MT5 are pretty much identical?

Thread Tools
Show Printable Version Email this Page
Display Modes
Switch to Linear Mode Switch to Hybrid Mode Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
1yr old Yaris 5spd sedan S w/150,000+miles	trini_per4mance	General Yaris / Vitz Discussion	73	02-03-2009 10:21 PM
Need a 5spd in the toronto area for dyno session	jetstreamer	Canada	11	12-02-2008 08:34 AM
Test drove: Yaris sedan 5spd, Fit base auto, Civic LX 2dr 5spd	Bounty Hunter	General Yaris / Vitz Discussion	7	07-11-2007 07:40 AM
Need pics of the yaris 5spd trans	Snake	Performance Modifications	0	02-15-2007 11:04 AM
5spd vs automatic	m-arco	General Yaris / Vitz Discussion	16	12-14-2006 05:32 PM