The newer brands of tire sealants work quite well, at least for smaller punctures/slow leaks, & if you read the labels carefully, some aren't flammable. Worth considering, at least, imho. They do suggest you inform any would-be tire repair folks that you've used the stuff, tho, so apparently the stuff is still quite messy. But the M Roadsters have cans of it standard in the trunks as there's no spare & they don't use run-flat tires like some of the vettes.

 

Here's my choice:

http://www.circlebmw.com/parts/access/mobi...litykit-cat.htm

 

Flammability hasen't been an issue with any that have been sold in some years. They do tend to sit in trunks for a long time so you should always bring the can along after you've used one.

The goop shouldn't ruin balance, it should improve it.

 

I carry a can of it just to be safe. I fear the day that I pop two tires on a peice of glass or the like and can't even limp home. I still have the spare.

 

I used Fix-a-Flat on my Accord once for a slow leak; I drove straight to the tire shop though, so I'm not sure how long the stuff holds. It certainly does work for small holes and driving at reasonable speeds.

 

I have a can sitting in my trunk and i used it once on my old one, and it worked great. I received a really small nail in my rear, but i wasn't going to spend money fixing it, so instead, i bought the fix-a-flat and it worked.

I got smart this time, and purchased one of those pluggers, and fixed another flat the other day myself. The only thing that sucked was that it was hard to punch into the tire, and i was by myself, so i had to put the car in neutral and let gravity take over and roll over the screw driver. It has been in the tire for about one month and no loss of tire pressure.

Since i have 18" a spare would basically be useless for me. Especially a rear fix. I have to do the chinese fire drill and by that time.. a call to a tow truck would be faster...

 

I would NOT use Fix-A-Flat unless you want to see the biggest mess inside your tire that you can imagine. It is also VERY GOOD at turning your tires into square devices that are almost undriveable when it's cold outside. IMHO this is a horrible product! Yes I have used it before, but never again.

 

Here's my "funny now, not so funny then" experience with fix- a- flat.
My friend, who owned a new hatchback, was visiting last summer.
Her blood curdling screams brought me out to the driveway to find that the can had exploded inside her car.
We spent the next 2 days scraping this glue like shit off every surface in the car's interior. It reminded me of being a kid and putting Elmer's glue on the palm of your hand and then peeling it off like you were peeling off skin. Except, after about 3 hours, it was not so fun any more.
Then I read the remains of the can and learned that you are not supposed to store the can in the car. Well, damn, it would do you a lot of good to keep fix- a-flat in the garage!!
My $0.2 on the subject!