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New tires killed my range (20-30% decrease)
- Thread starter lateulade
- Start date
pdx_m3s
Active Member
Completely worth it in my opinion, primarily for the AP. It really makes driving more peaceful and enjoyable. Plus you’ll make it back in the future with resale value. A Tesla without AP would be a tough car to sell.
You could also consider seeing what Tesla would give you to trade it in. I was surprised that Tesla was still willing to give me $32k for my 2019 SR+.
Tesla recently offered an AP upgrade for $2K for those who did not already have it. That means you are spending at extra $2,500 for 20 more miles of range. That’s pretty hard to justify.
Keep in mind that SR owners can safely charge to 100% and get 220 miles of range while SR+ owners normally only charge to 90%, thus getting the same effective range for everyday driving.
P-Lo801
Member
That's pretty good. Tesla was only willing to give me $34k for my 2019 LR RWD with 21k miles.
pdx_m3s
Active Member
I’ve heard that logic a few times. The thing is, though, is that usually you don’t need 220 miles of range for everyday driving. Usually you only need max range for long trips, and when you need it, you want as much as you can get.
asus389
Member
I lost like 10% range going from the Pirelli Cinturato P7 (grand touring all season) to the Michelin PS AS3+ (Ultra high performance all season) last year. But now my car handles better and stops better. I gave up some ride comfort. The Michelin’s seem to be more flat resistant also. Anyways, tires can effect efficiency by effecting rolling resistance and by effecting unsprung weight (weight of wheel and tire combined). In my case it was both.
In general higher performance tires (even high performance all seasons) have more rolling resistance and are heavier due to the construction materials, etc used to make them stiffer and handle better. Although there are some exceptions. Grand touring all seasons are more focused on low noise, long life, ride quality, and more of them have low rolling resistance. Michelin MXM4 is a grand touring all season, the AS4 is a high performance all season.
In general higher performance tires (even high performance all seasons) have more rolling resistance and are heavier due to the construction materials, etc used to make them stiffer and handle better. Although there are some exceptions. Grand touring all seasons are more focused on low noise, long life, ride quality, and more of them have low rolling resistance. Michelin MXM4 is a grand touring all season, the AS4 is a high performance all season.
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asus389
Member
Can confirm, I live down the street. At any given time they have a parking lot full of new cars they are doing emissions tests on.
There is an interesting article on Tire Rack discussing how rolling resistance of worn tire can appear 20% lower than the same tire when brand new.
https://www.tirerack.com/tires/tiretech/techpage.jsp?techid=177
So a significant portion of observed loss in range (nominally 4-5%) could be attributed to reverse tire wear (worn tires provide higher measured efficiency over new tires).
https://www.tirerack.com/tires/tiretech/techpage.jsp?techid=177
So a significant portion of observed loss in range (nominally 4-5%) could be attributed to reverse tire wear (worn tires provide higher measured efficiency over new tires).
pdx_m3s
Active Member
Only 6,800 miles. And I decided to keep it, I was just curious what it was still worth to Tesla. We’ll be getting a Y next year and trading in (or selling) my wife’s Countryman.
When was this quoted? I'm in Portland too and was thinking about switching to the 2021 Model Year. But now that those are being built and my car has a little more mileage (~20k) im not sure if they will give me as much...
pdx_m3s
Active Member
pdx_m3s
Active Member
We'll see. Part of me thinks the high trade-in value was because they are still gunning for 500k deliveries for 2020, and are doing everything they can to meet that.
Pirelli Cinturato P7 AS. Someone posted that they had bought these and their range went up and the noise went down. I can't vouch for anything other than that's what I read. One thing you might run into is the tire shops not wanting to let you buy these because they don't have the some rating of the MXMM4 or some other reason (that I believe is just to sell you more expensive tires). They're about $100 less per tire than the MXMM4's.
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https://www.tirerack.com/tires/tire...ead compound,wet road and wintertime traction.
lower weight, less rolling resistance and reduced noise while enhancing wet braking and year-round traction, even in light snow.
pdx_m3s
Active Member
All season is a bit ambiguous. Do you need a tire that will encounter snow/ice? If not, I would stick with OEM.
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