
Michelin 4st is quieter compared to 3st. Here are the specific differences between Michelin 3st and 4st: Drainage Performance: Michelin 4st features a new tread design through Evergrip technology, increasing drainage space by over 50% compared to 3st, providing excellent drainage performance. During rainy days, a water film is more likely to form between the tire and the road surface, significantly reducing hydroplaning to a certain extent. Rubber Compound: Compared to 3st, Michelin 4st adopts a new tread design and a new rubber compound, improving wet braking performance and rolling resistance for both new and worn tires, thereby enhancing safety. Safety Performance: Official data shows that Michelin 4st has a wet braking distance that is 2.4m shorter than 3st, which improves driving safety to a certain extent.

Speaking of the noise comparison between Michelin Primacy 3 ST and Primacy 4 ST, I'll share from my personal tire replacement experience – the fourth generation is indeed quieter. Last time when I just switched to 4ST, I immediately noticed significantly reduced cabin noise on highways, unlike the constant low-frequency roar I used to get with 3ST. This is mainly because 4ST features more rationally designed tread blocks with evenly distributed varying sizes, which effectively interrupts noise vibrations during tire-road contact. Michelin incorporated silica compound and optimized grooves in this upgrade for better cushioning effect. The 3ST was actually quite quiet too, but after several years of use, I found noise increases noticeably with wear. If you do mostly urban driving, switching to 4ST brings more peace of mind – especially on rainy days or rough roads, that quietness makes the overall driving experience more comfortable. I also noticed 4ST maintains steadier grip, and with marginal price difference, it's worth spending slightly more for the upgrade since long-term fatigue reduction matters. Comprehensive tests show 4ST averages 2-3 decibels lower in noise measurements.

As a regular user who frequently chauffeurs family members, I've always paid attention to tire quietness because children tend to get restless during long drives. I've tried both the 3ST and 4ST models, with the latter being superior. For daily urban commuting, switching to 4ST resulted in noticeably reduced noise, especially at speeds above 60 km/h where the humming sound decreased significantly. Michelin optimized the compound and tread density when designing the 4ST, which helps disperse vibrations. The 3ST is also good, but after six months of use, I started noticing increased noise levels. I'd recommend ordinary drivers prioritize the 4ST—it's slightly more expensive but offers superior comfort. Reduced noise also means a quieter cabin, making long journeys less exhausting. Don't underestimate that small difference; over time, it significantly reduces fatigue. This upgrade is absolutely worth it.

For us young people working in the city, quiet driving is crucial. I've researched these two models, and the 4ST has better noise control. It produces less wind noise during daily traffic jams or on highways, and its tread block design variations help absorb vibrations. After changing tires, even music sounds much clearer.

Having driven for many years, I prioritize safety above all. Tire noise reduction and grip are directly related. The 4ST is quieter than the 3ST, especially in wet conditions where reduced noise comes with more stable grip, minimizing the risk of skidding. Michelin has upgraded the material formula to enhance cushioning. The 3ST performs moderately, with loud noise on wet roads affecting concentration. Choosing the 4ST ensures driving safety.

After frequent long-distance drives, tire noise becomes a major contributor to fatigue. The 4ST significantly reduces noise, making high-speed drives of 100 kilometers free from the annoying humming sound. Michelin incorporated a new silicone layer and tread pattern arrangement in the 4ST to disperse vibration sources. The 3ST tends to increase noise quickly after wear, lacking the durability of the newer version. Choosing the 4ST makes the journey much more comfortable.


