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I know a lot of owners are switching to non run flats as more and more threads are being posted on the Nitto Invos, Michelin PS2s etc.
What I am curious to know is what are you using in case of a flat tire? I know that there are fix a flat in a can sprays but these will ruin your TPMS and also if not taken to a tire repair shop and cleaned immediately will ruin your wheel.
First: If you have a tire that goes flat immediately while you are driving from some type of major road debris, face it you're going to have to call a flat bed tow truck to take it somewhere to be fixed. But that's the most UNLIKELY scenario.
Second: If you get a TPS warning that you have low pressure in one of your tires, start monitoring that tire as you drive to the nearest air pump. (Recommendation: carry your own small pump) If you see a steady decrease in air pressure as you drive there, just pump the tire up to the recommended max pressure shown on the side of the tire (~44 psi) and keep repeating that until you get to somewhere that can fix the tire, replace it or home so you can check it out yourself.
Third: There in no sense in carrying a jack because if the tire goes flat these cars are so low even with inflated tires that you most likely can't get a jack under the car with a flat tire anyway and if you could what are you going to replace the wheel with since you don't have a spare tire? So forget about the jack.
Forth: If you come out to your car and it has a flat tire, get out your small air compressor and pump it up to that max air pressure and do one of the above.
Recommendations:
1. Buy a small air pump and a plug kit that pushes a fiber or rubber plug into the hole for a temporary fix if you have to run the tire for an extended period before you can get it properly fixed or replaced.
2. Most flat tires are caused by some type of nail, screw, etc that results in a slow leak. If that's the case, just leave the nail, etc in the tire and keep adding air to the max pressure until you get it fixed.
I went with non-runflats due too money was tight at the time, but bought a battery powered air compressor from Home Depot, rechargeable of course and picked up a plug kit.
As for the tires themselves, since I only run the freeways out here, I went with the Kumos. Frankly, I don't care for them all that much. I find that the car wanders a lot now whereas before it was tight. I'm guessing its because the sidewalls aren't near as stiff as the runflats.
I've never heard of the actual wheel being damaged, just the TPMS, by using the tire sealant. I've run Michelin *** and GY GSD3s on my C5 and Michelin PS2s on my C6. I carried a plug kit, the Continental ContiComfortKit (from TireRack) that has the tire sealant included, the Mercedes Mini Jack (from a forum member in Germany “C5 Frederik” although I don’t know if he still sells them), and of course my AAA card. The only one I’ve ever had to use is the AAA card.
After having a couple of incidents with pinching the sidewall of my PS2s, and there by destroying the tire, I have since switched to the Firestone RFs and have been pleased with them. They’re a good compromise.
Third: There in no sense in carrying a jack because if the tire goes flat these cars are so low even with inflated tires that you most likely can't get a jack under the car with a flat tire anyway and if you could what are you going to replace the wheel with since you don't have a spare tire? So forget about the jack.
I wouldn't say no sense because when I had a nail in my tire I could see it but there is no way I was gonna be able to get it out and plug it with out jacking it up and unloading the suspension. Although I agree with you because carrying around a jack with you is kind of over kill. Especially since you can hear that nail whacking the road every second and you have TPMS that let you know whats going on.
If I had to carry around a jack this would be it though
On my 05, I switched to PS2s and what a huge difference! Always carried an air compressor and insurance w/roadside assistance...never had to use either. While I like the run flat concept...I don't like their handling and ride characteristics. Seems like the tire maufactures are continuing to make improvements to the EMTs ~ once it comes time to replace the run flats on my 09, I'll see whats on the market... but will be leaning toward the PS2s.
AAA. Also my insurance covers tows. Think about it..how many flat tires have you had in the last 10 years?
I had one with my GY run flats, and from a slow leak to complete flat before I could get home. But the run flats allowed me to continue to drive home at reduced power.
I have my BMW compressor and I am capable of plugging tires and my insurance will cover all tows, just wondering if a small sissors jack will fit under my BMW jacking pads.