Bridgestone EP422 tires swapped for Michelin Primacy MXV4s.

[thankyouOB]

i have done a few more chrge-full of trips, and the m/kWh are definitely down sharply; last night the 53-mile trip took 10 bars and the average was 3.8m m/kwh.
I never had a trip under 4.1 m/kwh before and it generally was around 4.5 and often more.
so, i am thinking more and more about what it could be besides a few pounds extra in the car for four tires.

[TomT]

Something is wrong somewhere. I drive the same route every day for work and have since the car was new (well, actually, my company moved to a new facility in the valley this month so that will no longer be true as of today) and when I went from the Ecrapias to the Michelins, my average trip mileage fell from 4.4 to 4.3... I was running 40 pounds in the tires at the time (44 now).

i have done a few more chrge-full of trips, and the m/kWh are definitely down sharply; last night the 53-mile trip took 10 bars and the average was 3.8m m/kwh.

[thankyouOB]

Something is wrong somewhere. I drive the same route every day for work and have since the car was new (well, actually, my company moved to a new facility in the valley this month so that will no longer be true as of today) and when I went from the Ecrapias to the Michelins, my average trip mileage fell from 4.4 to 4.3... I was running 40 pounds in the tires at the time (44 now).

i have done a few more chrge-full of trips, and the m/kWh are definitely down sharply; last night the 53-mile trip took 10 bars and the average was 3.8m m/kwh.

thanks. i will have the balance checked and up the pressure -- in two steps.

[thankyouOB]

the various online factoid sites on tires (tiretrack in particular) says the Michelins are about 4 pounds heavier per tire, 19 lbs vs. 23.
does that make that much difference, as I am off about 10% in m/kwh.

[LTLFTcomposite]

A set of tires would have to be pretty bad before I'd consider replacing them before they are worn out. Guess I'm not too discriminating when it comes to such things.

[TonyWilliams]

A set of tires would have to be pretty bad before I'd consider replacing them before they are worn out. Guess I'm not too discriminating when it comes to such things.

I've already worn out one set of Ecopias in 25,000 miles on the previous LEAF. Since I do NOT foresee these tires coming close to meeting the lease terms on my current LEAF, and I don't buy new tires for the dealer when I turn the car in, I just bought the Nissan Juke wheels and 215R45-17 Michelin MXM4 Primacy tires to enjoy while I'm driving the car.

Then, at turn in, I'll pop the 7000 mile Ecopias back on. I can sell the Juke wheels/tires for a substantial portion of what I paid for them.

So, you see, there are methods to the madness.

[Electric4Me]

I'm still having a hard time picking my next tire, but I need to make up my mind this week! I'm really leaning towards one of Michelin's non-all season tires, but still with the "Low Rolling Resistance" rating. I just don't need an all season tire in the Bay Area. I'm thinking about the Energy Saver summer tire. The MXM4 does seem like a fun tire though. Any rolling resistance observations to share Tony?

[TonyWilliams]

Any rolling resistance observations to share Tony?

I hope to have those on the car in a few days, and we'll see how they perform!!!

For rolling resistance test, I have my favorite test hill just a few miles away. I'll be able to tell pretty quick if there is any significant loss (or gain?) of rolling distance.

We've had some freakishly warm weather here yesterday and today, so I'll have to wait for the air density to come back down to "normal".

Michelin Performance Rating:
9 Wear Life
10 Fuel Efficiency
10 Handling
10 Braking
9 Comfort

[thankyouOB]

A set of tires would have to be pretty bad before I'd consider replacing them before they are worn out. Guess I'm not too discriminating when it comes to such things.

I've already worn out one set of Ecopias in 25,000 miles on the previous LEAF. Since I do NOT foresee these tires coming close to meeting the lease terms on my current LEAF, and I don't buy new tires for the dealer when I turn the car in, I just bought the Nissan Juke wheels and 215R45-17 Michelin MXM4 Primacy tires to enjoy while I'm driving the car.

Then, at turn in, I'll pop the 7000 mile Ecopias back on. I can sell the Juke wheels/tires for a substantial portion of what I paid for them.

So, you see, there are methods to the madness.

madness to my method, too.
two out of four of my Ecopias were ruined; one by a gouge and a bubble in the sidewall from going through some kind of road hazard. i had brought them in for a leak that was repaired, and the repaired tire was too damaged to survive a second patch.
the damage to the tire structure made me feel the damn tires were not up to standard, particularly when working with no spare.
i guess i could have gotten just two new ecopias.
i think of it as my low-end version of a third house with a car elevator.

[TomT]

The Ecopias were easily "pretty bad..."

A set of tires would have to be pretty bad before I'd consider replacing them before they are worn out. Guess I'm not too discriminating when it comes to such things.