About 4k miles ago (8 weeks ago), I put on my 3rd set of tires. My previous sets of tires (Original Michelin Energy Saver and Ecopia 422 Plus) both began getting "noisy" at 25 - 30 k miles. The Michelins were so noisy at 40+ k miles that I changed them after coming home from a long road trip at around 48 k miles even though they would have likely gone 60k+ miles. The Ecopia weren't quite as noisy as the Michelins at 40 k miles but I decided to change them at 42 k miles as I was planning several longer road trips including moving back to AZ. The Ecopias would have easily reached 50 - 60 k miles based on treadwear.
So, my thought process was do I spend around $180 per tire for Michelins, $160 for Ecopias, or try something less expensive knowing that I'd like take a hit in FE but perhaps improve performance. BTW, my estimation is that my FE took a hit of about 2-3 % with the Ecopias over the Michelins (say 1 mpg at 40 mpg). IMO, the issue with the noisy tires is due to the "unadjustable" camber causing excessive rear inner tire wear and some feathering and cupping.
After much research, I bought the General AltiMAX RT43. IMO after nearly 4 k miles of driving, the General's are hands down better than the Michelins and Ecopias with respect to performance, noise and ride comfort (especially if you like a stiffer feeling tire). The drawback with the General's is FE. I'd say that the Generals are 2-3 % worse than the Ecopias and 4-6% worse than the Michelins (2 mpg at 40 mpg). I know that those that value FE more than performance won't be able to live with the FE hit over the Michelins. But the performance of the Generals, IMO, runs circles around the Michelins. BTW, I'm running 45-46 psi in the Generals as they are a lot firmer feeling tire than the Michelins. I ran about 48 psi in the Michelins and Ecopias.
IMO, the worst case scenario for me would be that I would use about 100 gallons more gas with the Generals than the Michelins or spend an extra say $225 in fuel. But the Generals are only about $110 a tire. Even after the $70 rebates for the Michelins, the Generals and Michelins should cost about the same over the life of the tire.
I'll let the reader go to TireRack and read their test report on the General. I've attached several snips showing a comparison of the three tires from TireRack. Time will tell how the noise issue progresses with the Generals.
Compare Tires 1.JPGCompare Tires 2.JPGCompare Tires 3.JPG
I see from your attachments that you got the 98V load version rather than the 94T version. I figure that has something to do with the stiffer feeling. The 98V has max pressure of 51. The 94V has max pressure of 44. I am leaning toward the 98V tires like you have. (They are only like 5 more dollars each.) Any thoughts ? Thanks.
Perhaps the fact that you run 50+ psi lessens the inside tread wear and feathering.
I strongly agree. My first 12K miles (first rotation) did far more damage than the next 28K miles. I did a reverse mount at 12K. I started to use 48-50 lbs in the tires around 8K. (I have stopped rotating the tires for evening the tires out for is too noisy for me. I am also concerned the vibration may exasperate the transmission bearing problem - though only a suspicion.) I still have plenty of tread on the back but the noise is bothersome.
I may move the OEM Michelins to the back and get the RT43s for the front. Perhaps that way my mileage hit will be half yours.
By the way. I have been following the vulnerability of computer processors, with Intel processors being especially vulnerable. I don't recall ever seeing the word "mitigate" so frequently. (rather than fix)
Mitigate seems to apply so well to this camber cupping thing.
Edited by obob, 12 January 2018 - 03:50 PM.