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Tire viability vs date code

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GeneralDisorder

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These tires need to be replaced at 10 years MAX from the DOT date. Period. End of discussion. Full stop. 7 years is the max for mounting. 10 years from DOT is EOL. Or you risk death in a roll-over. Condition, storage, tread, appearance are all completely and utterly meaningless. You buy NEW tires and you keep them for no more than 10 years if you like breathing unassisted by machines. When these fail they delaminate and the sidewalls get chewed by the rim and the asphalt. Unless you pull over immediately they will appear to have ZERO sidewall. That will occur in 1/4 mile of driving at 5 mph once the tire is deflated. It indicates nothing about how or why the tire failed. It failed from rubber deterioration due to age. Nothing more.

These are the general Army guidelines and what units with experience Motor Sargents will stick by regardless of command trying to say that weather checking is "cosmetic" - that's how soldiers get dead on US freeways in peace time.
 
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GeneralDisorder

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The Power said:
Wondering if there are some brands/batches to avoid.
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Not anymore if you stick with DOT dates of less than 7 years. The Michelin XML is VERY dangerous because they had delamination problems. There's tons of these out there still and people still driving around on them like idiots. But they haven't been produced for at least 15 years or so at this point and were replaced with the significantly better XZL.

If you stick with Goodyear or Michelin and recent DOT dates you'll be fine. IDK about the Chinese or Euro tires. They aren't common in the US so finding useful experience on them, dealers to source them from, and anyone willing to be responsible for whatever "warranty" they come with makes it a non-viable option IMHO. When in Rome, buy Roman tires. But I'm in Oregon so......
 
R

Ronmar

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They make these in Oregon? Where can I get some? :)

your driving 7-10 tons of instant death for just about every passenger car on the road in a tinfoil cab, If you can’t stay in your lane…

this shit going wrong is one reason people don’t like ex-mil vehicles being operated by amateurs…
 
Keith Knight

Keith Knight

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A few factors to consider

Are you driving a lot?
Or are you casually driving?

I personally am driving around 25,000k miles a year. So if I put 5 year old tires on it I feel very comfortable with that knowing I’m putting another set of tires on in a year.

If you’re putting 3,000k miles per year and you put 5 year old tires on they are going to age out before you wear them down. So you’re going to want to buy brand new tires. So they last 6 years.

My last set of tires were 2017 Goodyears and had zero issues except they wear out way too fast at around 25,000k. The installed new set of 2020 tires and I decided to increase tire pressure to 95psi, after measuring thread depth on the old tires after 25,000k at 85 psi they were wearing more on the outside than the center. Hoping to get 30,000k at 95psi.

The good years are a pretty soft compound and off-road use will cut and take chunks out of the tire but not necessarily reduce tread depth.
 
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The Power

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Most that I noticed were the HMMWV sized stuff. They weren’t excessively old but looked really bad. It may have been a one off thing but it got me wondering if the larger trucks had ever experienced a “bad run” of rubber.
 
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The Power

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Keith Knight said:
A few factors to consider

Are you driving a lot?
Or are you casually driving?

I personally am driving around 25,000k miles a year. So if I put 5 year old tires on it I feel very comfortable with that knowing I’m putting another set of tires on in a year.

If you’re putting 3,000k miles per year and you put 5 year old tires on they are going to age out before you wear them down. So you’re going to want to buy brand new tires. So they last 6 years.

My last set of tires were 2017 Goodyears and had zero issues except they wear out way too fast at around 25,000k. The installed new set of 2020 tires and I decided to increase tire pressure to 95psi, after measuring thread depth on the old tires after 25,000k at 85 psi they were wearing more on the outside than the center. Hoping to get 30,000k at 95psi.

The good years are a pretty soft compound and off-road use will cut and take chunks out of the tire but not necessarily reduce tread depth.
Click to expand...
 
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The Power

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If I manage to get this built it will be a crane truck to work so quite a few miles a year (hopefully) which will definitely need dependable rubber. I would think the larger lug would last longer with off road use??
 
G

GeneralDisorder

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The Power said:
If I manage to get this built it will be a crane truck to work so quite a few miles a year (hopefully) which will definitely need dependable rubber. I would think the larger lug would last longer with off road use??
Click to expand...
If you will be heavy off-road then get yourself a set of Michelin XZL's. They have better off-road tread and thicker sidewalls.
 
Keith Knight

Keith Knight

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Petlas tires are an option! I’ve been a little skeptical but speaking with a friend that is in the tire business says he has no complaints with them makes them a serious consideration.
 
hike

hike

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GeneralDisorder said:
If you will be heavy off-road then get yourself a set of Michelin XZL's. They have better off-road tread and thicker sidewalls.
Click to expand...
For those with EcoHubs Michelin XZL and XZL+ tires are rated for a maximum speed of 55mph. Tires rated for 68mph: Michelin X Force ZL tires in a 14r20, and Petlas in a 395/85r20—
 
R

Ronmar

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Only the "K" range Petlas RM910's in 395/85R20 are rated for 68MPH. The G range are rated to 56MPH. Same with the RM900+ in 14R20... Man look at that(I am assuming it is max) inflation pressure 850KPA or 123PSI for the RM910's :O Must have a substantial sidewall... The RM900+ 14R20's are a little lower @116PSI for the K and 108 PSI for the G rated tires respectively...
 
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