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Michelin Primacy 4 ST

Michelin Primacy 4 ST Review - Buy Or Avoid?

Here are the key stats for the Primacy 4 ST, at a glance.
Key Info - Australia
Vehicle SuitabilityPassenger
Driving StylePremium Touring Summer
SeasonSummer
Release Date2019
Run Flat?No

Pricing

Enter your tyre size below to see the best prices for your specific size (if unsure, check placard on the driver's side door or your existing tyres).

Michelin Primacy 4 ST in Australia

This offering by Michelin has been around in Australia for about 5 years. Especially designed for regular passenger (non-SUV) vehicles, it comes in a total of 35 sizes.

This premium touring summer tyre is a solid option for those looking for a summer tyre in the premium end of the market. Note that it is not a runflat tyre.

Read on to see how it stacks up against the competition!

How We Reviewed The Primacy 4 ST Tyres

Unlike the Australian government, the European Union carries out standardised tests on all tyres sold in Europe. These tests are carried out in identical conditions, making them a reliable way to compare tyres.

For this review, we use averaged results from tests done on 5 sizes of the Primacy 4 ST tyres by the European Union.

We then compare these to the same results for the following similar tyres, also rated for Premuim Touring Summer usage and sold in Australia.

Fuel Efficiency

EU GradeCompared to an A grade tyre?
Fuel Efficiency
(A - E)
C0.2L/100km extra fuel consumption. ~$43 extra per year

The US Department of Energy estimates that around 25% of the fuel consumption of a vehicle is attributable to the tyres. That's a lot, and it means that choosing fuel efficient tyres can save you quite a bit of money.

The Primacy 4 ST tyres rank a C on a scale of A to E in the official fuel efficiency tests carried out by the EU (they call these rolling resistance tests).

Relative to an A grade tyre, expect to use an extra 0.2L/100km. This works out to $43 extra spent on petrol per year, based on a typical 12,000 km driven per year.

Comparison

Here's how the Primacy 4 ST compares to similar tyres for fuel efficiency (1 = Grade E, 5 = Grade A).

Based on the comparison tyres we've selected, the Primacy 4 ST ranked # out of 0 tyres.

Grip & Handling

EU GradeCompared to an A grade tyre?
Wet Grip
(A - E)
B2.5 metre greater stopping distance when braking at 80km/h

We'll now take a look at how these tyres compare in terms of grip and handling.

A good measure of this is 'wet grip', which is an indication of how well the tyres will allow the vehicle to come to a stop in wet conditions.

The Primacy 4 ST tyres rank a B on a scale of A to E in the official fuel tests carried out by the EU.

Relative to an A grade tyre, expect these tyres to require about an extra 2.5 metres to come to a complete stop when braking at 80km/h.

Comparison

Here's how the Primacy 4 ST compares to similar tyres for wet grip (1 = Grade E, 5 = Grade A).

For wet grip, they scored # out of 0 comparison tyres.

Noise

EU GradeCompared to an A grade tyre?
Noise
(A - C)
B (69 dB)2 times as noisy

Another key factor to consider when choosing a tyre is road noise. Once you're over about 40 km/h, the dominant source of noise you hear is from the contact of your tyres on the road.

There is a surprisingly wide variation in the amount of noise each tyre makes.

The Primacy 4 ST tyres produce 68.8 dB of road noise, which corresponds to a rank of B on a scale of A to C in the standardised testing done by the EU.

Expect these tyres to produce about 2 times as much noise as an A grade tyre (the decibel scale is logarithmic).

Comparison

Here's how the Primacy 4 ST compares to similar tyres for noise (1 = Grade C, 3 = Grade A).

For noise, they ranked # out of 0 comparison tyres.

Treadwear

With a UTQG treadwear rating of 340, the Primacy 4 ST would theoretically last 3.4 times longer than a tyre with a treadwear rating of 100.

Traction

The UTQG system measures traction as straight-line braking in dry conditions. The scale is AA, A, B, C, with AA being the best grade, and C the worst.

These tyres score a grade of A.

Temperature Resistance

The UTQG temperature resistance tests measure how well tyres can dissipate heat that builds up due to friction with the road. The scale is A, B, C, with A being the highest grade.

These tyres score a grade of A.

Warranty

The Primacy 4 ST tyres have a warranty of 6 years.

Comparisons With Similar Tyres

Still undecided as to whether to go with these premuim touring summer tyres? Check out our data-driven comparisons to similar tyres on the market in Australia!

Summary

The Primacy 4 ST tyres are a solid choice for anyone looking to replace their car rubber with some tyres designed for premuim touring summer action.

For fuel efficiency, they score a grade of C, which is more or less average, though this isn't a super important factor.

More important is the wet grip, which gives you an indication of their traction and handling. In this regard, they get a score of B, which is above average.

Finally, for road noise, they receive a B grade, which is about typical.

In terms of data out of the US, they have the following UTQG ratings:

  • Treadwear: 340
  • Traction: A (scale: AA, A, B, C)
  • Temperature Resistance: A (scale: A, B, C)

Full Size List (click to show)

Below is a list of all 35 sizes of the Primacy 4 ST tyres sold in Australia, sorted by tyre width. Select your preferred size to compare prices across multiple suppliers.

Size
195/55 R16 91V
195/65 R15 91V
205/65 R16 95V
205/50 R17 93W
205/55 R16 91W
205/60 R16 92V
215/55 R16 97W
215/45 R17 91W
215/60 R16 99V
215/60 R17 96V
215/50 R17 95W
215/45 R18 93W
215/55 R18 99V
215/55 R17 94V
225/60 R16 98W
225/50 R18 95V
225/60 R17 103V
225/45 R18 91W
225/45 R18 95W
225/55 R16 99W
225/55 R17 101W
225/50 R17 98W
225/45 R17 94W
225/55 R18 102V
235/45 R17 97W
235/50 R18 97W
235/60 R16 100V
235/55 R17 103W
245/45 R18 100W
245/45 R19 102V
245/50 R18 100W
245/45 R19 102W
245/45 R17 99W
255/45 R17 98W
255/45 R18 99W
Louis from Tyre Geek

Louis

I'm Louis, an engineer passionate about helping Australians choose better tyres for their vehicles!