18" Wheels + EV Tires gained ~18% range

[Muttonhead]

Switched from 19" sport wheel with (new-ish) junk Hertz tires.

Was surprised by the magnitude of the improvement, around 40 miles additional range.

Maybe I missed it but I hadn't seen a recent post in which both the wheel swap to 18" Aeros
and Sailun eRange happened at once. Moderators please move if appropriate.

Using the same out&back route, 40 miles, ~same temp and same GPS speed of 72 MPH
we went from 259 Wh.mi to 213 Wh/mi. We're quite pleased and this has held up
over several commutes since then. Just under 40 mile 'real world' range improvement.
Used wheels ($500 with no covers or TPMS) and about $700 for the tires 235R45-18.
Aero covers were about $50 locally.
We mainly wanted the range increase,
saving money will only happen if the sport wheels sell for more than expected.

Just to head off what's to come: Yes we have one of those Hertz cars.
Yes we changed two variables at once, the results are 'invalid'.
Yes they're not as good as (insert expensive tire here) and we'll die a horrible death.
Yes we bought tires from Vietnam and surely deserve a good talking-to.
Worse yet we bought them from Walmart, but what would you put on a $15K Tesla?

 

[3sr+buyer]

What was the brand and model of tires that were on the car before?

 

[Muttonhead]

What was the brand and model of tires that were on the car before?

Sorry, buried that in the blog post and then forgot to provide a link
Our $15K Ex-Hertz Tesla
although I'm not sure I'm even allowed, guess we'll see.
So "Ironman iMove Gen3" ...or... 'something generic that Hertz got for cheap'

 

[afadeev]

but what would you put on a $15K Tesla?

Best tire money can buy!
Tires are the ONLY thing that connects your 4,000+ lb car to the road, and keeps you out of the ditch.
Some prioritize performance fun and safety, others cost.

It's pretty clear you fall into the second category.
I'm firmly in the first.

To each his/her own, especially since we are not sharing the same roads!

 

[scalbert03]

Best tire money can buy!
Tires are the ONLY thing that connects your 4,000+ lb car to the road, and keeps you out of the ditch.
Some prioritize performance fun and safety, others cost.

It's pretty clear you fall into the second category.
I'm firmly in the first.

To each his/her own, especially since we are not sharing the same roads!

I see this as the old question that most get wrong. What stops a vehicle. Most say the brakes do which is wrong. The only thing stopping the car is what touches the pavement.

I will often spend more on tires than any other component.

 

[gt2690b]

Switched from 19" sport wheel with (new-ish) junk Hertz tires.

Was surprised by the magnitude of the improvement, around 40 miles additional range.

Maybe I missed it but I hadn't seen a recent post in which both the wheel swap to 18" Aeros
and Sailun eRange happened at once. Moderators please move if appropriate.

Using the same out&back route, 40 miles, ~same temp and same GPS speed of 72 MPH
we went from 259 Wh.mi to 213 Wh/mi. We're quite pleased and this has held up
over several commutes since then. Just under 40 mile 'real world' range improvement.
Used wheels ($500 with no covers or TPMS) and about $700 for the tires 235R45-18.
Aero covers were about $50 locally.
We mainly wanted the range increase,
saving money will only happen if the sport wheels sell for more than expected.

Just to head off what's to come: Yes we have one of those Hertz cars.
Yes we changed two variables at once, the results are 'invalid'.
Yes they're not as good as (insert expensive tire here) and we'll die a horrible death.
Yes we bought tires from Vietnam and surely deserve a good talking-to.
Worse yet we bought them from Walmart, but what would you put on a $15K Tesla?

Love this.. did you get an LFP model?

These seem like great deals although 700 is a lot for tires IMO maybe worth it for such great efficiency wonder how long they will last

 

[3sr+buyer]

Best tire money can buy!

Of course, the definition of "best" varies... and no tire is the best at every characteristic, including performance (handling, braking, dry, wet, snow, ice), comfort (ride, noise), efficiency (rolling resistance), and tread life.

One problem that those buying tires face is that not every tire is well tested in comparison to other tires that may be under consideration, so there is some guesswork involved in trying to figure out which tire is better and by how much in a given characteristic.

 

[scalbert03]

Of course, the definition of "best" varies... and no tire is the best at every characteristic, including performance (handling, braking, dry, wet, snow, ice), comfort (ride, noise), efficiency (rolling resistance), and tread life.

The tires are the primary safety component of all vehicles. Yes, conditions do dictate what provides the greatest safety, you wouldn't want a summer only tire in the snow. But you would want the summer only tire on a warm summer day when an emergency maneuver, or heavy braking, is required.

Tread life and range is a compromise to the safety of the tire. We all make that decision, including myself. But if travel times or tread were of no concern, the tire with the best performance is still the safest.

 

[gt2690b]

The tires are the primary safety component of all vehicles. Yes, conditions do dictate what provides the greatest safety, you wouldn't want a summer only tire in the snow. But you would want the summer only tire on a warm summer day when an emergency maneuver, or heavy braking, is required.

Tread life and range is a compromise to the safety of the tire. We all make that decision, including myself. But if travel times or tread were of no concern, the tire with the best performance is still the safest.

This is much easier in Woodstock than say Colorado where it can be over 100 one day and 8" of snow the next day

 

[scalbert03]

This is much easier in Woodstock than say Colorado where it can be over 100 one day and 8" of snow the next day

We occasionally get flurries here.

Still holds true though. A quality all-season tire will be safer in these extreme conditions. But there is still that annoy compromise due to varying conditions.

 

[gt2690b]

We occasionally get flurries here.

Still holds true though. A quality all-season tire will be safer in these extreme conditions. But there is still that annoy compromise due to varying conditions.

All seasons are basically illegal in the winter in the mountains

 

[scalbert03]

All seasons are basically illegal in the winter in the mountains

If you had 100 degrees one day and snow the next, what else could you use to be prepared?

 

[pikeman]

Switched from 19" sport wheel with (new-ish) junk Hertz tires.

Was surprised by the magnitude of the improvement, around 40 miles additional range.

Maybe I missed it but I hadn't seen a recent post in which both the wheel swap to 18" Aeros
and Sailun eRange happened at once. Moderators please move if appropriate.

Using the same out&back route, 40 miles, ~same temp and same GPS speed of 72 MPH
we went from 259 Wh.mi to 213 Wh/mi. We're quite pleased and this has held up
over several commutes since then. Just under 40 mile 'real world' range improvement.
Used wheels ($500 with no covers or TPMS) and about $700 for the tires 235R45-18.
Aero covers were about $50 locally.
We mainly wanted the range increase,
saving money will only happen if the sport wheels sell for more than expected.

Just to head off what's to come: Yes we have one of those Hertz cars.
Yes we changed two variables at once, the results are 'invalid'.
Yes they're not as good as (insert expensive tire here) and we'll die a horrible death.
Yes we bought tires from Vietnam and surely deserve a good talking-to.
Worse yet we bought them from Walmart, but what would you put on a $15K Tesla?

I try to avoid doing business with Walmart, but who knows about those tires? Maybe they will be a surprise. You are the trailblazer!

 

[gt2690b]

If you had 100 degrees one day and snow the next, what else could you use to be prepared?

sailun erange will be most efficient in both cases!

seriously though.. winter tires and/or studs would be best although they are crap when its above 50 outside

 

[Muttonhead]

Update after a 6500 mile road trip, covered in the blog referenced in my Member:About area, we can report that the efficiency gain was real. Maybe closer to 15% overall rather than 20%. Lots of 80MPH driving on that trip and crossed the continental divide six times. Efficiency averaged 226Wh/mi. not bad for that kind of driving! Tires worked perfectly from 103 deg.F near Phoenix to a near white-out snowstorm in Yellowstone. Some great 'performance car' type twisty roads were great fun in a couple different states.
I redid my 'test loop' above after returning. Same tire pressure. 2 deg. warmer, no wind to speak of. 215Wh/mi. so well within the margin of error. 10K miles on the tires now ...and a little curb rash...

 

[cleverscreenam]

If you had 100 degrees one day and snow the next, what else could you use to be prepared?

All-weather tires: a recently developed category that mixes all-season with snow tires, sturdy up to 90 degrees before they start wearing out faster.
Michelin CrossClimate is a well-known example, and virtually all tire companies have a model in this category now.
All-weather tires have sufficient cold performance to satisfy legally required winter tire usage in Canada, but all-season tires do not.

https://www.motortrend.com/features/best-all-weather-tires-tire-rack-customer-reviews/

 

[3sr+buyer]

All-weather tires: a recently developed category that mixes all-season with snow tires, sturdy up to 90 degrees before they start wearing out faster.
Michelin CrossClimate is a well-known example, and virtually all tire companies have a model in this category now.

These kinds of tires are typically all-season tires with enhanced snow and ice capability so that they meet the criteria for the 3-peak-mountain-snowflake marking that is normally found on winter tires (regular all-season tires have only "M+S").