20% Range Loss with New Tires

[agoldman]

there is a good reason the Mach e uses the tires it does. if there was something better ford would have used that. it's not like the oem tires are cheap to buy.

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[MatchaGT]

The reason why you have 20% loss is that the tires you chose weigh in at 36lbs. 10 lbs more than the stock tires.

 

[Jerrytball]

Hi all,

I have a '21 MME Select AWD with 225/60-18 tires. After 40k miles, I replaced the OEM tires. I considered Hankook iONs and Michelin CrossClimate 2s but avoided them—my friend's Hankooks wore out too quick, and I was concerned about excessive range loss with the CrossClimates since they were 3 peak rated/ probable greater rolling resistance. I went with Bridgestone DriveGuard Plus run-flats since the MME doesn’t have a spare.

I’ve seen a 20%/50-mile drop in range (240 mi to now 180-190 mi), which is much more than the 2-5% I expected. Has anyone else experienced this much range loss with new tires?

Thanks for the info!

So here is my comment on that I have the cross climate on mine. Mine are 20 inch though, and for example, this morning I charged up last night before I got in the car. It said I could go 218 miles that was a 85% charge. I’ve driven about 25 miles and now it says I can go 182 miles. It seems during this hundred degree weather down south here when I get on the road I’ll go from the 218 miles to 180 and about a 10 mile. And I think it’s mostly because of climate control outside temperature but the drive speed use is actually like 67%. So a lot of it for me I feel has to be related to the weather mostly. I think I’ve probably lost 20 miles to a charge with the cross climate, maybe not cause changed right away and was new to EV’s, but I love the tires because they really hold the road in their grade in the rain and they look really good.

 

[George]

No, I went with Mich CC2 tyres and they’re just fine. No noticeable range difference.

I’m considering the Michelin CC 2 Tires as well. I like Michelin and I like that tread design. I really want a soft, quiet ride. How do these Michelin‘s CC’s do in that regard on the Mach E?

 

[HuntingPudel]

Something is weird. I went with tires 30mm wider and wheels that are an aerodynamic mess. I went from 2.7 mi/KWh to 2.4 mi/KWh. ?‍?

 

[Thunderanger]

We bought the Goodyear ElectricDrive2 tires a couple of weeks ago and the range has stayed right about the same. Some days it's higher, others it's not. We'll know more when we get more than 500 or so miles on them. But MAN are they quiet and the ride is somewhat improved.

 

[Teslaeata]

I’m considering the Michelin CC 2 Tires as well. I like Michelin and I like that tread design. I really want a soft, quiet ride. How do these Michelin‘s CC’s do in that regard on the Mach E?

I find they’re a really good all round tyre. That tread pattern provides good grip, I didn’t find them any noisier that those original Conti summer tyres with steered axle style tread patterns and they’re wearing well though I’m not a hard & fast driver heavy on my brakes or severe during steering.

 

[Mach1E]

Thanks for your reply.

I know many say not to look at the GOM as it's not reliable but I haven't had any issues with it (in the 3+ yrs I've had my car) until recently. In the summer I've been getting a full charge at ~225 -230mi on the GOM however been actually getting closer to 240 mi on a charge. Now a full charge is ~205 mi but actually getting 180-190.
And I haven't changed the destinations I drive to or driving technique. The only change has been the tires.
I wish I looked at the mi/kwh right before I changed tires but I remember getting in the high 3s/ low 4s. Yesterday I got 2.7 and 3.5 driving the same trip in one direction and then the other.

This again has to do with how you’re measuring.

You said you got 2.7 then 3.5 on the SAME trip.

Thats a 30% difference on the same day, same tires.

The issue is you don’t know what is causing the variance. Yesterday the 30% definitely wasn’t the tires.

Would have to remove all the other variables except the tires to determine what the real mileage loss is. But as most are betting here, it’s not 20% from tires (unless they’re way under inflated).

 

[OrchidMania]

Since you’re quoting range, that means you’re using the GOM as a measuring stick.

The problem is that the GOM isn’t an accurate measuring stick.

It would be better to look at your miles/kwh on the same road, at the same speed, at the same temperature, with the same amount of wind to see any measurable difference.

20% is just too much to be from a tire swap.

Keep in mind, the GOM changes more than 20% when you DON’T change anything. That thing has a mind of its own.

Especially if someone else drives the car. When my husband drives the car the range on GOM goes down!!

 

[SonicBlue]

The run flats are going to be heavier also which will reduce the efficiency as well.

I thought the same. I would have to think run flats are heavier, which means less range. New tires are also stickier. Stickier = more rolling resistance = reduced range.

I would not have been surprised to see a 10% drop caused by this swap. 20%? That’s probably partly the inaccuracy of the GOM. Comparing mi/kWh before and after is more accurate.

 

[RickMachE]

there is a good reason the Mach e uses the tires it does. if there was something better ford would have used that. it's not like the oem tires are cheap to buy.

Not quite.

Car companies work with tire companies to develop tires that meet their all-around performance and efficiency requirements and price targets. Tires that come with vehicles are notorious for wearing out quickly, and for being overpriced when you seek a replacement.

When my OEM tires wear out, my go to replacement are Michelin Defenders, because they are great tires and have a great warranty.

 

[Jerrytball]

I’m considering the Michelin CC 2 Tires as well. I like Michelin and I like that tread design. I really want a soft, quiet ride. How do these Michelin‘s CC’s do in that regard on the Mach E?

Wife hated the stock tires. I put the cross climate on and she loves it. They’re very quiet and they handle it very high-speed more than you would expect.

 

[tuminatr]

I did a set of Vredetein Quatrac Pro+ because according to Tire Rack it outperforms the Cross Climate 2 and my range went up. My car is a GTPE and the tires are 245/50/19. Also the CC2 is directional and you can not rotate properly without dismounting the tires

Couple of questions

1 did you get new wheels too
2 what's the ride quality like
3 what trim MME do you have

Most tire manufacturers allow a trial period if you are not happy you may want to exercise it.

 

[bc3tech]

Not sure if it would affect this but there is a setting in FORSCAN (sorry can't remember the module offhand) for tire size (in mm!). Perhaps the computer's doing something related to that, but a mismatch w/ the tires you put on is causing this?

 

[rjuricich]

I noticed a large decrease in MPG in my previous ICE vehicle after switching tires, so I think tires make a big difference.

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