Dunlop Blue Response A/S 225/40R18 XL Blue Response A/S
Dunlop

Blue Response A/S

225/40R18 XL
All-Season M+S
$150.75/tire $201.00
Set of 4: $603.00
Minimum order: 4 tires (sizes can be mixed) ? Selling in sets of 4 is how we keep our prices this low — and a matching set keeps your car balanced and safe.
Most drivers replace all four for even wear and handling.
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Specifications

Size225/40R18 XL Blue Response A/S
Width225 mm
Aspect ratio40
Rim diameterR18
Load index92
Speed ratingV
Load rangeXL
SeasonAll-Season
UTQG820 A A
Treadwear warranty80,000 miles
Tread depth11/32"
Weight23.8 lbs
Max pressure50 psi
Severe snow (3PMSF)No
Run-flatNo

About the Dunlop Blue Response A/S

All-Season Passenger Car Touring tire.

Features

* Silica particles* Full-depth sipes* Variable array tread pattern* Wear indicators* 3D waveform grooves* UTQG - 820 A A (H/V-Rated), 820 A B (T-Rated)* 80,000 Mile (130,000 Km) Treadlife Limited Warranty* Road Hazard Warranty First 3/32nds from Original Tread or 2 Years from Purchase* Free Replacement Period First 50% from Original Tread or 3 Years from Purchase* 90 Days Free Trial Program

Benefits

* Maximize fuel economy and maintain softness in the tread rubber providing optimal traction on dry and wet surfaces* Maintain all-season performance, even in light snow* Reduces road noise for a quieter, more comfortable ride* Thoughtfully placed on both shoulders for easy visibility, drawing attention to vehicle alignment issues or need for tire rotation* Minimize pattern noise and maintain hydroplaning resistance as the tire wears, ensuring long-lasting wet performance

Understanding the 225/40R18 XL size

In the size code 225/40R18, 225 is the section width in millimetres (about 8.9"). 40 is the aspect ratio — the sidewall height is 40% of the width, or roughly 90 mm. R18 means radial construction on a 18-inch wheel, giving an approximate overall diameter of 25.1".

The load index 92 means each tire supports up to 1,389 lbs — about 5,556 lbs across a full set of four. The speed symbol V certifies the tire to 149 mph under its rated load. Always match or exceed the load index and speed rating listed on your vehicle's door-jamb placard.

What the Dunlop Blue Response A/S is built for

The Dunlop Blue Response A/S is an all-season tire, balancing dry grip, wet traction and tread life across spring, summer and autumn conditions. It carries an M+S (mud and snow) marking for light winter service. Fitment category: Passenger Car, CAR, Performance, Touring.

Tread life and grip ratings

This tire carries a UTQG rating of 820 A A. The treadwear grade of 820 is a relative durability score — a grade of 200 is expected to last roughly twice as long as a grade of 100 under the same controlled test. Traction grade A measures straight-line wet stopping grip (AA is highest, then A, B and C). Temperature grade A reflects heat resistance at sustained speed (A is highest).

Price and value

At $150.75 per tire, a full set of four costs $603.00. That sits close to the average for the 144 tires we stock in this size. Backed by a 80,000-mile treadwear warranty, that works out to roughly $7.54 per 1,000 miles across the set.

Frequently asked questions

What does the tire size 225/40R18 mean?

225 is the section width in millimetres, 40 is the aspect ratio (sidewall height as a percentage of width, about 90 mm), and R18 indicates radial construction for a 18-inch wheel. Overall diameter is approximately 25.1 inches.

What are the load and speed ratings of the Dunlop Blue Response A/S 225/40R18 XL?

Its load index of 92 allows up to 1,389 lbs per tire. Its speed rating of V is certified to 149 mph. Check your door-jamb placard and do not fit a tire rated below the vehicle's requirement.

How much does a set of 4 Dunlop Blue Response A/S 225/40R18 XL tires cost?

A single tire is $150.75 and a set of four is $603.00, covered by a 80,000-mile treadwear warranty.

Does the Blue Response A/S come in other sizes?

Yes — we stock 79 additional Blue Response A/S sizes besides 225/40R18 XL. Fit only a size approved for your vehicle.

Other sizes of this model

Similar tires in 225/40R18