Piston Slap: Spare Me Your AWD Drama

TTAC Reader DeSoto writes:

Greetings, Sajeev — longtime reader, first time writer, and I enjoy the content your column adds to TTAC! (Woot! — SM)

I recently acquired an all-wheel drive 2014 Cadillac CTS with about 15,000 miles on its factory 255/35 R19 Pirelli P7 run-flat tires. Looking ahead to an upcoming 3,500 mile driving trip, I have concern for the durability/drivability of the run-flats. The CTS is not equipped with any wheel-changing tools (jack, wrench, spare tire/wheel). A spare tire assembly (for the CT6) is available online, but I believe the standard compact spare is too small in diameter to be compatible with the 19-inch wheels on the AWD drivetrain. I prefer the freedom of having the option of changing a tire myself and continuing on my way, rather than waiting hours for assistance. I am thus considering, in order of my current preference:

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Piston Slap: Time to Retire Those Tires?

TTAC commenter Felix Hoenikker writes:

Sajeev,

I am in the process of replacing at least two tires on my ’74 Mercedes 450SL. The current tires are P205/70R14 Bridgestone RE 900 performance tires. They came with the car when I bought it privately in the summer of 2001.

I’ve been slowly — and I mean slowly — restoring the SL, and have only driven it about 10,000 miles since taking ownership.

Recently, I discovered the front left tire is wearing down much faster than the other three.

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Piston Slap: To Love, To Hate Aftermarket Rimz (Part III)

Austin writes:

Sajeev,

So, a while ago I asked Bark and community what to replace my broken Audi‎ wagon with. I ended up purchasing a 2010 Lincoln MKT Ecoboost. So far, it has meet all my needs and — more importantly — my expectations, with one minor but irritating issue. At speeds around 70 mph and up, I notice a constant “twitch” in the steering on some highway surfaces — a sensation of vibrating left and right just enough to be noticeable, but not enough to change the actual t‎rajectory of the car.

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Piston Slap: Spare Me Your Noisy Rubber!

TTAC Commentator gtemnykh writes:

About 5,000 miles ago, I installed new General Altimax RT43 tires on my 2012 Honda Civic LX, a well-regarded tire according to most sources. Everything was great when I first had them installed: No noticeable increase in noise and much better wet grip.

It was only several thousand miles later that I noticed tire noise. It’s loudest between 40 and 50 mph and sounds like I’m riding around on snow tires. At highway speeds, it’s less noticeable or not at all.

My question: Have you heard of tires starting out more or less quiet, only to later get louder as they approach 5,000 miles?

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Piston Slap: Get Your M+S, Be the All-Season Tire MD

Kai writes:

Hi Sajeev,

I could use a good, concise opinion regarding all-season tires. Researching this on the internet is more confusing than researching “chest pain” on WebMD, so you get to be the doctor on this. We’ve got a 2007 Honda CR-V, which my wife drives in 4-season weather about 1,000 miles/month. There are no major snow months here but there is a bit of rain and a couple good snowstorms a year. The CR-V is a great little car, light on the back end despite being 4WD and has 18-inch rims versus the OEM-fitted 17-inchers.

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Piston Slap: Taking Control of Torque Steer?

M.D.K. writes:

Good Afternoon. This will be my third query to this column, the first being an ill advised plan to put my wife in an old Mercedes hatched in an Afghan Bunker, the Second being for our Afghan Trailblazer that wouldn’t run. The Benz never materialized (thankfully) and the Trailblazer was made to run reasonably well with a fuel filter and removal of the clogged catalytic converter (The EPA man wasn’t coming to Bagram). Sadly about a week after we got the Trailblazer running they collected it in an effort to go to an all diesel fleet. It was replaced with a TaTa pickup.

This actually pertains to a vehicle in my own fleet, my wife appliance grade 2007 Hyundai Tucson.

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Piston Slap: A Scion's Ideal All Season Tire?

TTAC Commentator Sam Hell Jr. writes:

Hi, Sanjeev!

The first car I bought for myself was a 2011 Scion tC. Compared with some other decisions I made three years ago (cough, cough, career in human resources, cough), this one’s turned out okay — to date, I’ve put 40k on the odo with no repair costs but regular maintenance, and the hatchback utility and decent fuel economy have both matched up well with my needs. I’ll probably have the tC paid off this year, and I’m looking forward to debt-free living, so the car and I are stuck with each other for some time to come.

My biggest complaint is with the car’s interstate manners. I take a handful of significant road trips every year, and at freeway speeds on anything but pristine pavement (of the kind one does not often traverse on I-80), the ride gets jittery, and the tire noise is, well, tiresome.

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Piston Slap: Tyre Size Minus 1 or Minus 2?

Gavin writes:

Dear Sajeev:

I have a Gen 7 Toyota Camry V6 and I am getting close to replacement of the factory 225/45/18 low profile tyres. The selection of long wearing low profile all season tyres in 45 series is pretty slim. The four cylinder version of my Camry has 215/55/17 tyres on 7×17 inch rims and the selection of long wearing 55 series touring tyres is much better. My question is, since I am not really a ‘sport driving type’, would it be better for me to find a nice set of wrecking yard alloys and downgrade to the smaller rim/taller sidewall size tyres? Is the difference in performance between 45 series and 55 series noticeable or should I stay with the original low profile tyres.

Finally, Discount Tire seems to really push their ‘tire certificates’, a road hazard protection plan for $20/tyre. Is Road Hazard really necessary on a vehicle equipped with TPMS?

Cheers,

Gavin

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Piston Slap: Keeping A Low Profile on Boston Streets?

TTAC Commentator slance66 writes:

Sajeev,

The B&B helped me choose a car three or four years ago, and now I’m thinking of its replacement, ahead of time. I bought a CPO 2007 BMW 328xi, which has been nearly flawless to 67k. I only drive 8,000 miles a year with a 3.5 mile commute each way, so it should last a long time. I love the car and do plan to keep it a few more years, but, I don’t know if it will survive the potholes.

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Piston Slap: "Spare" Me From Dry Rot!

TTAC Commentator sastexan writes:

With the extreme cold throughout the US and seeing a few shredded tires on the highway this week (in fact, I had a flat myself – not sure what caused it but possibly doing donuts in the FR-S on a parking lot last week with lots of broken up ice on the edges), I got to thinking about spare tires.

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Piston Slap: Burnt Rubber Sienna?

Mike writes:

Sajeev,

Here’s a hot topic for you and the B&B. I have a 2006 Sienna LE (front wheel drive) that has been absolutely bulletproof and reliable for the past 140k miles, except for the tires. I run “all seasons” in the summer and winter tires on separate wheels in the winter. We drive about 10k miles in the summer and another 5-7k in the winter. We live in the Finger Lakes region of NY.

This thing eats any tire that I put on it.

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Piston Slap: It Ain't Easy Being on the Front Left!

Matt writes:

Hello,

I own an 06′ Hyundai Elantra GLS hatchback and tire wear on the front left tire has been much worse than the other three, despite rotating the tires. The outside of the front left tire is worn down so that it is smooth and now I can see a secondary layer of rubber being exposed. At first I thought maybe there was something wrong with the alignment but I took it to three places, one wanted to charge me a $90 “diagnostic” fee so I walked and the other two couldn’t find anything wrong. One place mentioned that since I had directional tires I couldn’t really get a proper rotation and thats probably what’s causing the wear.

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Piston Slap: The Wheel That Won't Budge

Matt writes:

Hey Sajeev. Looking for your wisdom, or perhaps that of the B&B. I’ve got a 2005 Hyundai Elantra with about 50k miles. Back around 40k, we had new tires put on it at Sears. Now I want to rotate the tires (yes, I know, I should have done this a while ago), but when I got to the very last wheel, I ran into a roadblock. The rear right wheel is fused to the hub! It seems to be rusted on. Poking around a few forums online, I got a couple of ideas:

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