Yokohama BluEarth 4S AW21

Name: Yokohama BluEarth 4S AW21
Brand: Yokohama
Rating: 3.8 (8 reviews)

The BluEarth-4S AW21 incorporates Yokohamaâ€™s latest winter-tire technologies to provide drivers with outstanding performance on icy and snowy winter roads as well as excellent dry and wet performance under more normal driving conditions. The tire also features a newly developed tread pattern that features an optimal balance of edge area and surface contact area.

Tire review data from 8 tire reviews averaging 75% over 6,524 miles driven, and 5 tests with an average result of 16th.

Dry Grip 87%

Wet Grip 86%

Road Feedback 80%

Handling 70%

Wear 55%

Comfort 73%

Buy again 67%

Snow Grip 82%

Ice Grip 78%

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The Yokohama BluEarth 4S AW21 has been tested by Tire Reviews! Click here to view the in depth tire test>>

First On Market	March 2018
Wheel Size	14 - 22"
Width	155 - 295mm
Profile	35 - 70

Rolling Resistance	C - E
Wet Grip	B - C
Noise (dB)	70 - 73
Winter Rating	3PMSF Rated

The BluEarth 4S AW21 is ranked 30th of 62 All Season Premium Touring tires.

Tests Included

Best Result

6th

Worst Result

23rd

Average Result

16th

Latest Tire Test Results

The Best All Season Tires for 2024

6th of 7 tires

Very high levels of grip in snow, best ice braking, lower purchase price.
Low levels of grip in the wet, long dry braking, very high rolling resistance.
The Yokohama BluEarth 4S AW21 is another tire that is better in the snow and ice than the dry and wet. It's not a bad product, and it was very good in the snow, but perhaps a bit too good for an all season tire as it was firmly outclassed when not in winter conditions.

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2024 ADAC All Season Tire Test

14th of 16 tires

The Yokohama BluEarth-4S tire receives an overall adequate rating for driving safety. It shows significant weaknesses on dry roads at high temperatures and misses good ratings on both wet and winter surfaces.

On dry surfaces, the tire offers barely adequate steering feedback and lacks precision. The driver must make frequent corrections due to delayed steering response and inconsistent cornering. The test vehicle tends to oversteer early in dynamic maneuvers, resulting in an adequate rating for limit behavior. Braking distance is rated as satisfactory.

On wet roads, the BluEarth-4S performs satisfactorily. It narrowly misses a good rating in braking tests, while its aquaplaning resistance and handling are clearly rated as satisfactory. The tire struggles to effectively combine longitudinal and lateral forces and tends to under- or oversteer relatively early.

In winter conditions, the Yokohama achieves a satisfactory result. It scores well in snow braking but only satisfactory in traction and snow handling. The test vehicle offers satisfactory steering precision, but with a narrow and low performance limit. Ice braking performance is also rated as satisfactory.

Environmentally, the Japanese-made Yokohama BluEarth-4S receives a satisfactory rating. It achieves only satisfactory scores in projected mileage, wear, and efficiency. The tire is criticized for production residues on new tires, which unnecessarily impact the environment during initial use.
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2023 All Season Tire 35 Set Shootout

Best Result: 1st (2024)

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Show All All Season Premium Touring tires

Size	Fuel	Wet	Noise
14 inch
185/60R14 82 H	D	C	70
175/65R14 82 T	D	C	70
15 inch
195/65R15 91 H	D	B	70
195/55R15 89 V	D	B	72
185/65R15 92 V	D	C	70
185/65R15 88 H	D	C	70
16 inch
205/55R16 94 V	D	B	72
215/60R16 99 V	C	B	72
215/70R16 100 H	D	B	72
205/60R16 96 V	D	B	72
205/55R16 91 V	D	B	72
215/60R16 99 H	C	B	72
205/60R16 96 H	D	B	72
17 inch
205/50R17 93 V	D	B	72
215/45R17 91 W	D	B	72
215/55R17 98 W	C	B	72
235/65R17 108 W	C	B	72
225/50R17 98 V	C	B	72
225/45R17 94 V	D	B	72
225/45R17 94 W	D	B	72
225/60R17 103 V	C	B	72
18 inch
225/40R18 92 W	D	B	72
245/45R18 100 Y	C	B	72
245/40R18 97 Y	D	B	72
235/60R18 107 W	C	B	72
19 inch
235/35R19 91 Y XL	D	B	71
20 inch
245/35R20 95 Y XL	D	B	71
255/45R20 105 W XL	C	B	73

View All Sizes and EU Label Scores for the Yokohama BluEarth 4S AW21 >>

Questions and Answers for the Yokohama BluEarth 4S AW21

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December 11, 2018

New XC60 4x4 (235/55/R19 V) comes with Latitude road tires that are no use to me. I live on Dartmoor hence mud and stones plus some ice and snow. I need a sturdy all season tire capable of a bit of off road but also capable of dealing with poor road conditions with gravel potholes and stones. Strong sidewalls. Currently using Yokohama Geolandars which last for ever but probably aren't the best in snow or in the wet. Looking at Scorpion Verde all season FSL with rim protector band. But the Verde is runflat M&S which seems like a good idea but how good on stones off road? Any suggestions - most other makes only have an H speed rating - I should have V though I'm not likely to exceed 130!

I'm afraid I'm currently out of my depth when it comes to SUV. This test includes both all season and AT tires which are legal winter tires and will give you an idea regarding the balance of performance.

December 27, 2023

Despite its mid-low ratings in all the tests, do you know something more about the Yokohama BluEarth 4S AW21 thanks

I'm afraid not, all the data I know is on the site.

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YouTube Review

Top 3 Yokohama BluEarth 4S AW21 Reviews

Given 87% while driving a Honda CRV (225/45 R17) on mostly country roads for 1,000 easy going miles

Great looking tire with plenty of all round uniform tread.

Helpful 242 - tire reviewed on November 6, 2018

Given 70% while driving a Suzuki vitara s 1,4 boosterjet (215/55 R17) on mostly town for 10 easy going miles

The first 2 years with these tires was brilliant! Smooth drive quiet with very little road noise noticed. Summer months the tires were fine not very sporty, noticed as the temperatures got up to 30°c they felt very soft going around corners.
Autumn into winter is were these tires are great! The wet grip is excellent and feels like a normal summer tire. When the snow arrived I was really impressed how much grip they gave going up hills even braking on snow was very good. Into the 3rd year of ownership and cracks started to appear on the tread blocks where it contacts the road, also noticed that road noise has increased with the ride feeling harsher than before. Seems like most all season tires suffer from this hardening of the tire surface into the 3rd year of use. I doubt I would buy these again due to this.

Helpful 56 - tire reviewed on November 14, 2023

Given 95% while driving a BMW 435d (225/45 R17) on a combination of roads for 2,000 easy going miles

They have been excellent over the winter months, they feel very solid on seriously wet roads and motorways and when it has been icy there hasn’t been any slip or loss of traction when accelerating or braking. No use in snowy conditions or warm hot weather as yet. Very glad I swapped my Primacy 3’s, nice in the dry but to me they didn’t feel solid particularly on wet motorways, these are a vast improvement in the wet.

Helpful 62 - tire reviewed on March 12, 2022

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Latest Yokohama BluEarth 4S AW21 Reviews

Given 69% while driving a Fiat Bravo (225/45 R17) on mostly town for 500 average miles

Previously I drove on Firestone Multiseason 2, which are my point of reference. Unfortunately they have dry rotted prematurely so I have opted to go for a different brand (on a side note the car was stored in harsh conditions so I can understand that that was the main issue).

The Yokohamas seem more winter oriented and they are overall decent, I have not noticed anything unusual, except for the road noise which is a bit of a killer. They legitimately howl like banshees :D I am not going to buy these again mainly because of that.

Helpful 12 - tire reviewed on February 28, 2025

Given 81% while driving a Subaru XV 2.0 D (225/45 R17) on a combination of roads for 1,000 average miles

OE tires G95A by Yokohama, M+S designed with not that good performance on wet. Tires are somewhat designed for "all terrain" use, Geolandar series, so it was not a surprise. Then I switched to G055 M+S tires over again, good tread wear, good in the wet and in the dry, sufficient in the snow as the G95A was -the AWD proved axcellent and overtaking winter tires equipped cars-. Last I put on weather control A005 from Bridgestone, very good in dry and et, but too winter oriented and soft compound, tread wear not an asset at all -blistering noted on the edges after 30,000 km, trew them away. I drove 80,000 miles with the liste tires, then I put on the 4S AW21, giving credit to Yokohama first real all season tire. They are developed from a summer tire as far as I know, I hope this is true as the tread depth is not excessive. So far so good, wet and dry performance is very good, cornering in the wet is excellent wiht my car. Only lihgt snow tested, but I do not pretend that much as I rely on the AWD and even a fair performance becomes a good performance thanks to the symmetrical AWD with the viscous centre diff and limited slip, so the snow and ice ratings are not a reason of choice for me. First impression was they are a bit better than the Bridgestone A005, but performance may dramatically change according to tire size and vehicle, on my car this tire by far outperforms the bridgestone A005, althouhg my expectation was not to that direction.

Helpful 75 - tire reviewed on December 15, 2020

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Given 51% while driving a Skoda (205/60 R19 H) on a combination of roads for 14 average miles

I fitted 2 YOKOHAMA "BLUE EARTH" tires to the front of my car May 2017.After only 14,632 miles one had a crack running the full circumference of the outer tread next to the outer wall. I found it very difficult to contact YOKOHAMA and l still had no reply after 3 weeks. AVON ZV5 same size fitted to the same position on the same vehicle reached 21,145 .Fitted to the rear 28,000, performance wet and dry roads was very similar to that of the YOKOHAMA.

Helpful 67 - tire reviewed on November 11, 2020

Volkswagen (225/45 R17) on mostly country roads for 1,000 spirited miles

I can't comment on snow and ice grip as yet but dry and wet grip perfectly acceptable (Golf MK 6 1.2 TSI) through some spirited driving. Only downside is steering feel when manoeuvring - tires give very odd sensation but nothing so bad that would stop me buying again