Run flat tires

[Mackskibum]

You guys are too new to the forum to know ard. He may seem abrasive, but he knows his stuff because he is in the mechanic business. Not as a shade tree, but makes his living as a mechanic.

There are topics that are incendiary. Run flats. Motor oil. Fuel additives. Oil additives. Etc. normally associated with a troll trying to start crap. If you want to learn the forum discussions related to these, do a search. Not hard. Search "run flats" "best motor oil" "fuel additives" , etc. not saying the OP had the intent to start a fire, but that's what happened.

When you've been a member for a while, you will see the value of the forum. Post count doesn't matter. Talk to me about time as a member and then you have something.

[AlpineX]

Originally Posted by Mackskibum

You guys are too new to the forum to know ard. He may seem abrasive, but he knows his stuff because he is in the mechanic business. Not as a shade tree, but makes his living as a mechanic.

There are topics that are incendiary. Run flats. Motor oil. Fuel additives. Oil additives. Etc. normally associated with a troll trying to start crap. If you want to learn the forum discussions related to these, do a search. Not hard. Search "run flats" "best motor oil" "fuel additives" , etc. not saying the OP had the intent to start a fire, but that's what happened.

When you've been a member for a while, you will see the value of the forum. Post count doesn't matter. Talk to me about time as a member and then you have something.

Wait, Ard is a mechanic? I thought he was a retired attorney.

[Crowz]

Originally Posted by Mackskibum

You guys are too new to the forum to know ard. He may seem abrasive, but he knows his stuff because he is in the mechanic business. Not as a shade tree, but makes his living as a mechanic.

There are topics that are incendiary. Run flats. Motor oil. Fuel additives. Oil additives. Etc. normally associated with a troll trying to start crap. If you want to learn the forum discussions related to these, do a search. Not hard. Search "run flats" "best motor oil" "fuel additives" , etc. not saying the OP had the intent to start a fire, but that's what happened.

When you've been a member for a while, you will see the value of the forum. Post count doesn't matter. Talk to me about time as a member and then you have something.

The main problem I had when "searching" for run flat info was all I could find was "they suck" and how to go about ditching them.

I'm more interested in what run flats do best and not how to get rid of them.

Not to many post on that.

[AlpineX]

Originally Posted by Crowz

The main problem I had when "searching" for run flat info was all I could find was "they suck" and how to go about ditching them.

I'm more interested in what run flats do best and not how to get rid of them.

Not to many post on that.

I generally buy run flats so that if my wife gets a flat solo or with my daughters in the car, it is not a big deal. If it is a big deal, we have AAA.
And if I get a flat, I'd rather keep rolling.

There are a couple more reasons than that, but that's good enough to stop there. I am not attracted to 20" staggered wheels, though some look nice.

[Tomaz]

Originally Posted by Crowz

The main problem I had when "searching" for run flat info was all I could find was "they suck" and how to go about ditching them.

I'm more interested in what run flats do best and not how to get rid of them.

Not to many post on that.

Thanks, thats exactly why I posted this.

[Crowz]

Originally Posted by Tomaz

Thanks, thats exactly why I posted this.

I plan on getting Scorpion Verde All Season Run Flat - Size: 255/50R19 at the moment. My driveway is very muddy and I also deal with snow from time to time and these seem to be the best for that from what I have been able to find researching them.



I have cooper cs5's on the wife's e53 and her pacifica awd and they do amazing but cooper doesn't make run flats.

If I lived in the city I would probably go with the goodyear f1's that are on the back now. They do ok so if the Pirelli's don't "shine" I may go back to them later.

The goodyear's do look good




I don't clock up that many miles on the e70 so I'm not really worried about tread life since I normally replace tires on what I drive now from dry rotting more than tire wear

[Dieselfan]

Originally Posted by Crowz

The main problem I had when "searching" for run flat info was all I could find was "they suck" and how to go about ditching them.

I'm more interested in what run flats do best and not how to get rid of them.

Not to many post on that.

I can't tell which are best, what I can tell you is don't buy Continental RFT snow tires, they are more of a fair weather snows. Not for climbing in snow.

[Skyline]

Originally Posted by Crowz

I plan on getting Scorpion Verde All Season Run Flat - Size: 255/50R19 at the moment. My driveway is very muddy and I also deal with snow from time to time and these seem to be the best for that from what I have been able to find researching them.



I have cooper cs5's on the wife's e53 and her pacifica awd and they do amazing but cooper doesn't make run flats.

If I lived in the city I would probably go with the goodyear f1's that are on the back now. They do ok so if the Pirelli's don't "shine" I may go back to them later.

The goodyear's do look good




I don't clock up that many miles on the e70 so I'm not really worried about tread life since I normally replace tires on what I drive now from dry rotting more than tire wear

Ideally, you should have identical tires on all four wheels. Otherwise you can screw up the handling balance of the car. Also, with an AWD car, it is important to keep tread depth pretty close to identical on all four wheels. When tires are different brands, this becomes more difficult, as you'd need to compare circumferences and shave accordingly...possible but not really practical to do.

So in your situation, the best result would be to order a second pair of F1 runflats for the front of your car, (making sure both are the correct sizes for a staggered set, so that when new, the circumferences were the same). Measure the tread depth of your existing rears, then order them from TireRack and have them shave them to the match the tread depth of the rears. OR buy a new set of four tires of your choice that are a matched staggered set. (I'm not aware of other vendors or local shops who shave tires, but I'm sure they are out there.)

If you have significant difference is tire outside diameter front to rear, you will screw up all sorts of things in your car.

[Crowz]

Originally Posted by Skyline

Ideally, you should have identical tires on all four wheels. Otherwise you can screw up the handling balance of the car. Also, with an AWD car, it is important to keep tread depth pretty close to identical on all four wheels. When tires are different brands, this becomes more difficult, as you'd need to compare circumferences and shave accordingly...possible but not really practical to do.

So in your situation, the best result would be to order a second pair of F1 runflats for the front of your car, (making sure both are the correct sizes for a staggered set, so that when new, the circumferences were the same). Measure the tread depth of your existing rears, then order them from TireRack and have them shave them to the match the tread depth of the rears. OR buy a new set of four tires of your choice that are a matched staggered set. (I'm not aware of other vendors or local shops who shave tires, but I'm sure they are out there.)

If you have significant difference is tire outside diameter front to rear, you will screw up all sorts of things in your car.

I will be replacing all at once since I want to keep the tread within the 1% spec. I didn't choose any of the current setup as it had these when I bought it.