Goodyear EfficientGrip Performance 2 vs Michelin Primacy 4 — Compared

“17" Goodyear efficient grip performance 2 small leak identified Hi, On my VW Touran 2019, 1.5 TSI, 17" alu oem wheels I have set Goodyear efficient grip performance 2 . There is a small leak lets say the pressure goes fro m 2.5psi to 2 psi in approx 7-10 days. The VW tpms warns me usually every 2-3 weeks. Im posting a new topic as I cant seem to upload pictures on the other one... Thanks to some help here I found the leak. See the pictures. I have no idea what is that roundish shape it seems smooth/rubbery and the hole clearly come from inside it. What now? Slime bottle? Glue? Or this thing that goes inside like a tire repair kit with the kind of rope thingy? Thanks!”

“17" Goodyear efficient grip performance 2 small leak Hi, On my VW Touran 2019, 1.5 TSI, 17" alu oem wheels I have set Goodyear efficient grip performance 2 . There is a small leak lets say the pressure goes fro m 2.5psi to 2 psi in approx 7-10 days. The VW tpms warns me usually every 2-3 weeks. Those are summer tires, I just removed them for swapping with winter ones and I haven't cleaned them yet. They are quite dirty at the moment. The leaking one, pictured, was in the front this year, I switch them front/back every year. In my opinion it can do one last year (next summer) in the back. How would you fix the leak? I read those slime sprays damages the tire internally over time, but them its really approaching end of life fast in my opinion... I did visual inspection, I really dont see anything except maybe 1or two very tiny mark that could have been a nail puncture or something but its nothing sure... Maybe soap+ water? Thanks for hints. Ps: I have the tool somewhere for the indicator measurement, I cant find it right now.”

“Advice on new tyres So my car got stolen (RIP) and I bought a 16' MB c200d with rears 245/40r18 Its time to change them and I don't know what to do. A/S are not needed because snow is very rare in central Spain. Winter temperatures range between 0-10°C and summer range from 30 to 40. As I drive 25-30000 km per year I especially value wet performance and durability (Minimum 35-40000 km). The problem is, the tyres that would fit perfectlly to me are not available in this size (GY efficient grip performance 2 -best tyres i've ever had- and Michelin Primacy 5). What i've seen is Firestone (both roadhawk 2 and roadhawk sport), continental PC7, GY assy 6, Michelin PS5, bridgestone T6, Dunlop sport TG, kormoran/tigar/Taurus summer 2, nexen sport, hancook (Ventus evo 137 and Ventus prime 4) and kumho ps72. Even though It would be nice to save some money, i'm worried about losing rear grip when wet (its my first rwd) so its not important. What would you pick? Read more”

“When I bought my freshly imported 2014 Nissan Leaf in Sept 2020 it had 27,xxx km on the odometer and a full set of Michelin Primacy 4 that were sidewall dated from very late 2018, so likely only very low mileage on them. I put another 47,000km on them before replacing with a full set of Toyo Proxes C100 Plus in April 2024 which have also been great. The Michelin fronts were certainly very worn particularly the shoulders. I really rate Toyos so would encourage you to have a look. I’ve since put 21,000km on the Toyos and even after 12,500km, in May 2025 at their most recent WOF, the fronts still measured at 7mm and rears 8mm. P.S I paid $900 total for the 4 x Toyos inc. fitting, disposal etc.”

“Michelin Primacy 4 or Conti UC6 - Virtus GT Hey, i recently got a Virtus GT with stock Apollo alnac 4g tyres - looking to upgrade them. As per ChatGPT my options are Michelin Primacy 4 and Continental UC6 - budget is not really a problem. Overall i want good grip, handling, comfort and low cabin noise. Not going for Pilot Sport 4, because don't want to compromise on comfort for performance when i am not going to push my car too much, hence PS4 is a no no. But read it somewhere that with Primacy 4, there is a noticeable difference in mileage not sure if it means going up or down. Need recommendations on what i should get! Thanks in advance”

“Review: Michelin Primacy 4 ST I own a 2023 N8 DCT and recently changed all four tyres from the stock CEATs after one of the tyres’ sidewall was punctured on hitting a rather deep pothole at high speed. Cost: INR 9,750 per tyre Existing tyre buyback: INR 1,000 per tyre (~15k kms) Review: I’ve been using the new tyres for a few weeks now and I’m happy with the upgrade. The difference is noticeable, but only if you pay attention. I’d say a non-savvy person won’t notice anything different unless you ask them to pay attention. At low speeds, the road noise is reduced and the vehicle is noticeably silent (almost dead silent if the roads are smooth and the engine is at low revs) and smoother. At high speeds, the noise level difference is not very noticeable due to the engine and wind noise, but the smoothness and grip is noticeably better. That said, I wouldn’t say the stock tyres are bad (in terms of both - noise and grip) as a lot of reviewers like to point out; definitely not a night and day difference for me. Lastly, I believe the fuel efficiency has improved due to the lower rolling resistance, but I don’t have enough data to claim this confidently. My verdict is to only upgrade if your current tyres are worn out. Personally, I don’t think spending close to 40k is worth it for the budget conscious. But if you have the money to spare, you will definitely be happy with the upgrade. Read more”