[S.T.A.R.]

Originally Posted by ZL1 1LE

Not in my experience with MPSSs.

The Zo6 does it on factory tires, not sure the brand though, Cup2's ?

[Sven59]

Originally Posted by ZL1 1LE

Not in my experience with MPSSs.

It only happened a couple times, could have actually been something else but felt like it.

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[mlee]

Originally Posted by 1roadking

My regular ZL1 does this bad on rutted roads.

Yes, me too... especially when accelerating to pass or something and there is un-even pavement. I even experienced this on the drag strip too.

[RandRZL1]

Every vehicle I have owned with wide performance tires has done it. Definitely road dependent, but then our roads suck! 😊

[kwav8r]

Originally Posted by 1roadking

My regular ZL1 does this bad on rutted roads.

+1

[S.T.A.R.]

Originally Posted by RandRZL1

Every vehicle I have owned with wide performance tires has done it. Definitely road dependent, but then our roads suck! ��

R, I live in Schuylkill County Pa, you have no idea what these roads are like!

[S.T.A.R.]

Originally Posted by mlee

Yes, me too... especially when accelerating to pass or something and there is un-even pavement. I even experienced this on the drag strip too.

For Christ sake, drag strips are flat as flat can be.

[JusticePete]

Originally Posted by S.T.A.R.

Had just left the dealer on my way to the Expel installer and it was 28 degrees outside, snowing but not sticking with just wet roads. Still the ass end was kicking out with very little throttle input.

The tires really weren't made for those conditions and I assumed this would be the most intrusive mode.

Spot On!

Cold tires and cold wet slush....

[kwav8r]

Originally Posted by S.T.A.R.

R, I live in Schuylkill County Pa, you have no idea what these roads are like!

I live down the road in Carlisle, probably as bad.

[Mr. Wyndham]

In 28º & wet snow? It's likely a combination of tramlining, and the tires barely being able to hold the road in the first place. I don't think anything is wrong - but I am glad you made it to your destination in one piece.

I might suggest PTM "Wet" if you ever encounter this situation, again. Snow/Ice mode effectively is the same as Tour, except it changes the throttle map to be a little less "jerky". Stabilitrak doesn't change.

PTM "Wet" engages very different features, including timing and fuel at the engine to maintain grip under acceleration. It does intrude a LOT...in my experience, at least, I've found this to be the most stable suite of Nanny's to drive with in less than ideal conditions. Worst I've done was 36º and wet in the ZL1 1LE....

[S.T.A.R.]

Maybe you should write a book, thanks for that.

[ZL1 1LE]

Originally Posted by Sven59

It only happened a couple times, could have actually been something else but felt like it.

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My MPSSs tramlined all of the time.

[Can'tHave2MuchHP]

It's a wide tire thing, but no about exacerbated by the wet/cold conditions with summer tires. My truck has 305s all around on a 20x11 and it wants to pull where ever the worn lines are.

[2SSRS@Gen5diy]

Does any one know, how long the tires (ZL1LE) are good till they heat cycle out? went out of town and when i get in the freeway and give gas to go around a car that was getting on at 35 MPH( way to slow no one in front of them and no traffic ) the car rear tires let go and back end wonder off to the left, back pedal to get her going forward, so looking to see if any one has a number for heat cycle?

PS it was 62 degrees outside and had driven the car for 15 min to warm the tires before getting on the freeway.