Michelin Pilot Sport 4 vs Michelin Primacy 3 — Compared

“So I went through my front two Bridgestones in 8000 mile - my own fault really. Anyway I've had Michelin PS4's fitted on the front since that's what 90% of people say to get. Well... They are sh*t in my opinion. I'm running 38psi in the front, so I'm open to trying different pressures if anyone else runs anything else. Twice under heavy breaking the car has completely lost traction - this NEVER happened with the same amount of speed and breaking on the Bridgestones. Three times when throwing the car into a hard corner the tyres have felt like they were skidding or possibly folding which resulted into a late grip which then whipped the car. Maybe I just need to get used to them but I've not noticed too much of an improvement in a straight line and breaking and cornering on them has been shocking. The cornering just seems awful, I've lost so much confidence driving the car now. I had the Eibach Sportline springs fitted just before I changed the tyres and the handling went through the roof, now all that seems to of gone... Any thoughts? Pressures? Do the tyres just not fit how I drive?”

“I was running pilot sport 4s on my MS. (19” wheels) I was lucky to get 13,000-14,000. I just switched to Kumho Majesty 9’s for about 1/3 the price. Currently have 4,000 miles on them and just to rotated. Fingers crossed I can get 13,000 miles out of them.”

“Michelin Pilot Sport 4 tires are noisy (a followup) I have been asked on this sub if the PS4 tires on my wife’s Bolt are noisy, and I wasn’t sure how to answer. Well, we made two 60-mile round trips this past weekend, mostly on highways with 55 and 70 mph speed limits, and I have to say that the tires are kind of noisy. Certainly not as quiet as EV-oriented tires are. The grip is fantastic, so we really like them. If you are sensitive to noise, though, these Max Performance class tires are probably not for you.”

“By far the biggest determinant in road noise will be the road surface, as you found, and no tire will overcome that basic fact. That is so obvious in my area where there are new sections of highway interspersed with old sections. Having said that, I'm running the older Michelin Primacy 3 ST tires on 17 inch wheels on my 2021 ES300h and they are great, compared to the Turanza I was running on 19 inch wheels on the same car. The Michelin Primacy Tour A/S should be even better in this regard. Not sure, but perhaps the higher profile of the 17 inch tires (215/55R17 vs 235/40R19) also helps reduce road noise.”

“I have Pirellis on my 2014 F31 wagon. I have overinflated them slightly (3 psi front, 2 psi rear) because with the pressures placarded on the door post they are not responsive enough. With the overinflation they make fine street tires . At the limit they are still a bit soft, but the limits are so high that I have no business driving like that on the public highway. Tire Rack, I believe, tested Michelin Primacy 3 ZP (zero pressure, or run-flat all season tires ) and liked them. I have no thoughts about Continentals , so that I am only muddying your waters by adding in the Michelins for consideration.”

“Currently riding on Michelin Primacy 3 ZP run flats that originally came with the car. Have approximately 15k miles on it and Mercedes are already recommending I purchase new rear tires. What other options would you recommend as replacements? I would like all season tires that last much longer but also don't want to compromise the comfort and ride. Front tire: 245/40 R19 Rear tire: 275/35 R19”