
Here are the main differences between Michelin Primacy 4 and 3ST: 1. Drainage performance: Michelin Primacy 4 features a new tread design through Evergrip technology, increasing the drainage space by over 50% compared to the 3ST. Don't underestimate the drainage function of tires. As the saying goes, "Prepare against danger in times of safety," the drainage performance of car tires is extremely important. On rainy days, a layer of water film equivalent to a lubricant forms between the tire and the road surface, making hydroplaning more likely. Good drainage performance can significantly reduce the occurrence of such situations. 2. Rubber compound: Michelin Primacy 4 adopts a new rubber compound with excellent braking performance, resulting in naturally better wet braking distance. Official data shows that Michelin Primacy 4 outperforms the 3ST by a full 2.4m in wet braking distance. It's worth noting that even 0.1m can potentially prevent a major accident, so to some extent, it also enhances driving safety.

I recently switched from Michelin 3ST to Primacy 4, and the difference is quite noticeable. The Primacy 4 offers much better wet grip, reducing braking distance by several meters, which gives me more confidence when taking sharp turns. It's also quieter, making highway drives more peaceful and even improving the sound system's performance. In terms of fuel efficiency, the 4 is slightly better than the 3ST, saving money in the long run. If you frequently drive long distances or in wet conditions, the 4 is definitely the superior choice. While the 3ST is durable and cost-effective, the 4's improvements in comfort and safety are worth the investment, providing a smoother and more natural driving experience overall. I'd recommend choosing the newer model over the older one.

As someone with some experience in tires, I've researched the differences between Michelin Primacy 4 and 3ST. The 4 has optimized rubber compound and tread pattern design, reducing rolling resistance for better fuel efficiency; it also offers superior wet braking performance, providing more stable braking on slippery roads. Compared to the 3ST, the 4 has better noise control, making for a quieter ride. In terms of lifespan, the 4 is slightly more durable, making it suitable for long-distance driving. The 3ST offers good value for money, but the 4's technological updates lead in safety and energy efficiency, especially if you prioritize actual driving quality—the 4 is the smarter choice.

I prioritize cost-effectiveness. The Michelin Primacy 4 and 3ST are similarly priced, but the 4 offers better long-term benefits. Its improved wet braking reduces accident risks, potentially lowering costs. It also has lower fuel consumption, saving you money on gas annually. The 3ST is fundamentally reliable, but the 4's superior grip enhances safety in rain and snow, reducing maintenance costs. Additionally, the 4's reduced noise improves comfort. If your budget allows, the 4 is worth the investment.

Safety first! I test-drove two models, and the Primacy 4's wet braking performance far exceeds the 3ST, with braking distance reduced by about 20%, which is crucial during heavy rain. The tire noise is also lower, allowing me to focus on driving. Comfort is similar between the two, but the 4 offers better overall grip and less bumpiness, making it ideal for highways. The 3ST is reliable, but the 4's technological upgrades excel in anti-skid and safety, protecting you from accidents. Upgrading to the 4 is a decision you won't regret.

As a family driver, I prioritize the safety of my entire family. The Michelin Primacy 4 outperforms the 3ST in wet conditions, offering shorter and more stable braking, especially ensuring safety when picking up and dropping off kids in rainy weather. It's significantly quieter, making the cabin peaceful so children can sleep soundly in the back. Slightly lower fuel consumption saves money and is eco-friendly; the 4 also has slightly better durability. While the 3ST is a classic model, the 4 improves driving stability with optimized tread patterns. Overall, the 4 represents new technology with meaningful upgrades, making it the top recommendation.


