I have the stock summer Pirelli tires on my widebody and they're (107Y).
HRJ,
I swear...just when you think you got something understood!
With regard to the Michelin PS4S tires and that michelinman.com link where I got the 104Y info, I noticed there are TWO listings to "buy" 4S tires - for what would appear to be the same dang tire. They do have different model numbers, but everything else about the tires seems the same. No separate load index ratings on that buy page - the load index ratings if they are different aren't displayed. So what's that all about??
ARE there two models of your summer Pirelli tires - one model rated 104Y and another one 107Y? Why would a company do that? Someone seeking to buy OEM replacement summer Pirelli tires could easily forget about, or not know about, the 107Y rating and buy what looks exactly like their OEM tires on tirerack.com - but rated 104Y. That might present a safety hazard.
Fast forward to the confusing scene of a purple Challenger Red Eye Wide Body, previously loaded with people and some luggage, consumed by fire by the side of a road. The people are standing there looking at the car and their belongings burning up. They all have agreed the car seemed to have had four simultaneous tire blowouts for no apparent reason. Bits and pieces of rubber sidewall behind the car support this assessment. Fortunately for them, the simultaneous explosive blowout of the tires kept the car going straight down the road, sparking 4th of July-like sparklers while grinding down the newly purchased custom wheel rims of the avid Hellcatforum.org member - until the people could bail out as it screeched to a smoking stop. Unfortunately, the prolonged sparking inside the wheel wells ignited oil fumes emanating from an aftermarket oil catch can *nod to DGatzby's catch can thread*, which had ruptured from the combined shock wave of the exploding tires. The impressive catch can oil fume fire had rapidly spread via ruptured brake fluid lines to engulf the entire vehicle.
Ambulance pulls up, followed by ambulance chasing attorney. He looks at the scene, turns to the owner of the car and says, "Looks like the county is going to bill you big time for those 300' long furrows your wheel rims dug in the asphalt, plus the giant melted spot where the car lies. I'm a liability specialist!"
He looks over at the passengers. "Any of you suffering? Any aches and pains? Any emotional trauma? Expecting any long term ill-effects?"
They all nod eagerly. He turns to the owner and says, "I sure hope your tires had the correct load index rating. If not, you're f*#ked! Insurance won't cover it."
The owner looks shocked, and then says, "They were 104Y rated high performance summer tires! They can go faster than 186 mph, and I was only doing 60!"
The attorney says, "I know cars. Your car specificed 107Y tires. It's called negligence, Mister." He turns to the passengers. "Any of you feeling so poorly you're anticipating long term trauma, and would like to seek punitive damages for negligence?"
They all nod eagerly. The attorney peers again at the burning hulk. "Is that a catch can I see?" The owner slowly nods.
"I thought so. More negligence! I always tell people they're NEVER worth the extra 37 horsepower."
