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Old 09-09-2018, 08:15 PM   #7 (permalink)
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Join Date: Jul 2008
Location: Langley, BC
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Fusion - '16 Ford Fusion Hybrid SE
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Originally Posted by ksa8907 View Post
What kind of driving do you do? Highway, city, mix? Speed limits?
Mods will differ depending on expected driving conditions.
Easiest for highway would be either larger tires or a gear change.
I'm really not interested in mods here - that's not what this thread is about. Besides, the TC can be locked using the methods above at the lowest speed that I would ever want to do it at. I can cruise at 66 km/h (41 mph) at 1200 RPM all locked up.

Originally Posted by elhigh View Post
I just looked at your fuel log. That's a terrific jump in fuel economy for no cost. I mean - it's a 14% jump over your previous tank, that's huge.
Don't pay attention to that last tank - that was a highway trip with lots of slower cruising speeds. I probably touched the brake a total of ten times the entire tank.

I just ordered a WIFI OBD2 adapter to run the Torque app for testing. But since I don't have it yet, here's the question:

What is more efficient at 60 km/h (37 mph) - 3rd gear/TC locked/1500 RPM (higher RPM/low drivetrain loss) OR 4th gear/TC unlocked/1400 RPM (lower RPM/more drivetrain loss)? How much efficiency is lost through an unlocked torque converter at low loads?

Last edited by mechman600; 09-09-2018 at 09:39 PM..
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