5.0 3.31 Gear Ratio Canada

[DeliveryJay]

Canada.
Figured I would share my first 3000 km assesment of my 2021 F150 5.0 with 3.31 gears , XLT 302A.

Fuel Milage : City 13.5L to 14L per 100 Kms normal driving.
Highway: 10.8 L per 100 KMs average.

Towing : 5000 LBs through various terrain and grades, 24.5 Liters per 100 KMs average.

For those who are unsure of gear ratio towing, the 3.31 did perfectly fine towing, i only tow 4 to 5 times a year. Saving about 20 bucks a tank in the city with the 3.31 and the fuel milage is basically the same as my old 2019 5.0 with a 3.73 when towing.

Probably if you tow more often or heavier then move up to 3.55 or 3.73 but 3.31 did fine otherwise.

Oil consumption minimal after 3K , actually dont think its moved at all on the dipstick

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[fayby]

I got a 5.0 v8 with 3.31 too. Averaging about 13-13.5 l/100km in Toronto. I actually got the 3.31 by mistake, I ordered 3.73 rear axle but was delivered with a 3.31. It works fine so far.

 

[tony72cutlass's']

I got a 5.0 v8 with 3.31 too. Averaging about 13-13.5 l/100km in Toronto. I actually got the 3.31 by mistake, I ordered 3.73 rear axle but was delivered with a 3.31. It works fine so far.

is there an easy way to tell what axle ratio they installed? My window sticker says 3.73 but is there a tag or code on the diff or something?

 

[DeliveryJay]

is there an easy way to tell what axle ratio they installed? My window sticker says 3.73 but is there a tag or code on the diff or something?

Honestly im not too sure, if sticker says 3.73 it more than likely is

 

[Missmy3/4ton]

Fuel Milage : City 13.5 to 14 KM/L normal driving.
Highway: 10.8 KM/L average.

Wait. Something can't be right here. Highway should be better than City. 10.8 * 2.3521458 = 25.4 mi/gal. Then towing you got 58 mi/gal? Im confused, what am I missing?

 

[DeliveryJay]

Wait. Something can't be right here. Highway should be better than City. 10.8 * 2.3521458 = 25.4 mi/gal. Then towing you got 58 mi/gal? Im confused, what am I missing?

1 KM is only 0.6 Miles
1 Liter is only 0.26 Gallons

 

[tony72cutlass's']

Wait. Something can't be right here. Highway should be better than City. 10.8 * 2.3521458 = 25.4 mi/gal. Then towing you got 58 mi/gal? Im confused, what am I missing?

I think it's intended as L/100Km, not sure though as thats how we normally look at it up here

 

[Missmy3/4ton]

10.8 KMs per Liter is better than 14 KMs per Liter.

1 KM is only 0.6 Miles
1 Liter is only 0.26 Gallons

How so? It's better to drive 14 Km on a single Liter than it is to drive 10 Km on a Liter. It's better to go farther with less fuel consumption...

Right, and one kilometer per liter is equal to 2.352145 miles per US gallon. So 0.6/0.26=2.3 MPG. I think something is off on your math to calculate KM/L. What's your Trip 1 reading?

 

[DeliveryJay]

Canada.
Figured I would share my first 3000 km assesment of my 2021 F150 5.0 with 3.31 gears , XLT 302A.

Fuel Milage : City 13.5 to 14 KM/L normal driving.
Highway: 10.8 KM/L average.

Towing : 5000 LBs through various terrain and grades, 24.5 KM/L average.

For those who are unsure of gear ratio towing, the 3.31 did perfectly fine towing, i only tow 4 to 5 times a year. Saving about 20 bucks a tank in the city with the 3.31 and the fuel milage is basically the same as my old 2019 5.0 with a 3.73 when towing.

Probably if you tow more often or heavier then move up to 3.55 or 3.73 but 3.31 did fine otherwise.

Oil consumption minimal after 3K , actually dont think its moved at all on the dipstick

How so? It's better to drive 14 Km on a single Liter than it is to drive 10 Km on a Liter. It's better to go farther with less fuel consumption...

Right, and one kilometer per liter is equal to 2.352145 miles per US gallon. So 0.6/0.26=2.3 MPG. I think something is off on your math to calculate KM/L. What's your Trip 1 reading?

Sorry i fixed my original post, had put it wrong my bad.

10.8 L per 100 kms
14 L per 100 kms
24.8 L per 100 Kms

 

[Missmy3/4ton]

I think it's intended as L/100Km, not sure though as thats how we normally look at it up here

Oh, that would explain it. Interesting, so with that lower is better.. How come it's written that way?

Sorry i fixed my original post, had put it wrong my bad.

10.8 L per 100 kms
14 L per 100 kms
24.8 L per 100 Kms

I see that now, interesting. Makes a lot more sense! lol

 

[tony72cutlass's']

Oh, that would explain it. Interesting, so with that lower is better.. How come it's written that way?

I see that now, interesting. Makes a lot more sense! lol

Not sure I think we just like to be different!

check out my window sticker it's in L/100K https://www.windowsticker.forddirect.com/windowsticker.pdf?vin=1FTFX1E56MKE50343

 

[Missmy3/4ton]

Not sure I think we just like to be different!

check out my window sticker it's in L/100K https://www.windowsticker.forddirect.com/windowsticker.pdf?vin=1FTFX1E56MKE50343

Pretty cool. It's weird for me to see the numbers reversed like that.

 

[DeliveryJay]

Oh, that would explain it. Interesting, so with that lower is better.. How come it's written that way?



I see that now, interesting. Makes a lot more sense! lol

Pretty cool. It's weird for me to see the numbers reversed like that.

My 2019 had a goofy bare bones productivity screen that showed kms per liter not liters per 100 km

 

[tony72cutlass's']

So here's a weird tidbit, i've got 3.73 gears in mine, and i'm averaging 12.3L/100km. I only suspect it will get better once complete the break in period of 1K.

What are you guys seeing now that you have gone a few more thousand, has it improved?

 

[DeliveryJay]

So here's a weird tidbit, i've got 3.73 gears in mine, and i'm averaging 12.3L/100km. I only suspect it will get better once complete the break in period of 1K.

What are you guys seeing now that you have gone a few more thousand, has it improved?

Threw my winters on and the best city I am getting is 16L/100.

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