Rubicon Ecodiesel 35s MPG and Power

[CowboyII]

What Arizona hills are you driving, that is quite a hit. I was getting around 29 MPH on the stock tires that I had. When I got a set of Rubi take offs, I was getting 26 MPH. On my current setup with 35s I am getting 21 MPH. I drive 70 miles round trip daily across 2 valleys with rolling hills.


We are all diesels in this discussion.

What Arizona hills are you driving, that is quite a hit. I was getting around 29 MPH on the stock tires that I had. When I got a set of Rubi take offs, I was getting 26 MPH. On my current setup with 35s I am getting 21 MPH. I drive 70 miles round trip daily across 2 valleys with rolling hills.


We are all diesels in this discussion.

I love diesels for the torque and mpg.
I don't complain about the drop with my tires. The tires are wide and kind of heavy. I am out in the desert climbing and running around town. It is what it is.

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[JTdiRtyD]

The big ticket is your speed. I typically drive on 70 mph highways with very little of anything less than that, and I see 20ish consistently on 35s. The other day I had about 120 miles worth of 55-60mph back roads so I reset my mpgs and I was at 26mpg when I finally got home. Anything over 60mph and it starts dropping pretty fast.

Same can be said for flat lands vs hilly/mountains. I have always seen higher mpgs when hilly or in mountains vs the flats. Flatlands is consistent fuel input with little to zero coasting. Always using cruise control can also lower mpgs because again, very little to no coasting.