Over-Pressuring Your Tires

[4kids2dogs&RV]

I came across the following article the other day while researching something else, I hadn't planned to ask if anyone has tried this until I saw @RamIt s post about the high pressures in his tires from the factory.

It's a long read, but interesting to say the least.

If anyone has tried it, what were your results?

http://performanceunlimited.com/tire...MPGArticle.pdf




Sent from my SM-N960U using Tapatalk

 0 Comment(s)

[RamIt]

Yes, I've tried it. No, I don't recommend it.

Your net gain isn't significant enough to justify it. Ultimately, any money you'd save on fuel by improving fuel economy, you will lose through premature wear of your tires. Additionally, from a safety perspective it's not worth it. As you saw in my post, my tires were ~34psi over inflated from the factory. My guess is that they pumped them up to 100psi before going on the rail (TPMS maxes at 99); this is done to prevent flat spotting of the tires in transit and you should absolutely not drive on that much air.

My truck was all over the road, and I'm very lucky that none of the tires popped (it was 115* outside the day I noticed how much air was in them, and I was doing 75 on the highway).

My educated & professional opinion is to run what the sticker on the door says...or the recommended pressure from the tire manufacturer.

 0 Comment(s)

[TexNeck]

Yes, I've tried it. No, I don't recommend it.

Your net gain isn't significant enough to justify it. Ultimately, any money you'd save on fuel by improving fuel economy, you will lose through premature wear of your tires. Additionally, from a safety perspective it's not worth it. As you saw in my post, my tires were ~34psi over inflated from the factory. My guess is that they pumped them up to 100psi before going on the rail (TPMS maxes at 99); this is done to prevent flat spotting of the tires in transit and you should absolutely not drive on that much air.

My truck was all over the road, and I'm very lucky that none of the tires popped (it was 115* outside the day I noticed how much air was in them, and I was doing 75 on the highway).

My educated & professional opinion is to run what the sticker on the door says...or the recommended pressure from the tire manufacturer.

Holy smokes!! Talk about riding on rocks! LOL 80psi is way too much for me!

 0 Comment(s)

[RamIt]

Holy smokes!! Talk about riding on rocks! LOL 80psi is way too much for me!

Oh yeah it was horrible. And a bit scary too cause the truck was all over the road.

 0 Comment(s)

[Polaraco]

Oh yeah it was horrible. And a bit scary too cause the truck was all over the road.

I was going to say that. Wait until you drive it in snow! Yikes!!!

 0 Comment(s)

[RamIt]

I was going to say that. Wait until you drive it in snow! Yikes!!!

Hard pass

 0 Comment(s)

[4kids2dogs&RV]

@RamIt I don't disagree with your comments on your situation,
Even the author was skeptical at the start. But like he says, you can't argue with results.

Page 3, he writes of an inreased mileage of 2.1mpg (27.2%). Doesn't sound like much, but when you're GCWR is >25k, that's pretty significant
Page 4, he discussed tire wear
@Polaraco see page 2, snow, slush and ice are mentioned as well

Give it a read, like I said... interesting

 0 Comment(s)

[RamIt]

@RamIt I don't disagree with your comments on your situation,
Even the author was skeptical at the start. But like he says, you can't argue with results.

Page 3, he writes of an inreased mileage of 2.1mpg (27.2%). Doesn't sound like much, but when you're GCWR is >25k, that's pretty significant
Page 4, he discussed tire wear
@Polaraco see page 2, snow, slush and ice are mentioned as well

Give it a read, like I said... interesting

Oh no, I read it. But I don't agree with it.

And I seriously question the results listed, especially tire wear. He's trying to articulate tire wear over a period of time that equates to less than 1% of total estimated life of the tires. Beyond that, even his own test showed that the mileage results went downhill, sharply. I promise you running that much air over the life of the tire will 10000% ruin those tires well before their actual lifespan limit.

Beyond that its just a major safety risk.

The tires have a load limit and pressure limit for a reason, exceeding them is just asking for trouble.

I don't think the trade off of 2.1mpg is worth the risk.

 0 Comment(s)

[FlyingDiesel]

Yes, I've tried it. No, I don't recommend it.

Your net gain isn't significant enough to justify it. Ultimately, any money you'd save on fuel by improving fuel economy, you will lose through premature wear of your tires. Additionally, from a safety perspective it's not worth it. As you saw in my post, my tires were ~34psi over inflated from the factory. My guess is that they pumped them up to 100psi before going on the rail (TPMS maxes at 99); this is done to prevent flat spotting of the tires in transit and you should absolutely not drive on that much air.

My truck was all over the road, and I'm very lucky that none of the tires popped (it was 115* outside the day I noticed how much air was in them, and I was doing 75 on the highway).

My educated & professional opinion is to run what the sticker on the door says...or the recommended pressure from the tire manufacturer.

Your post just answered a question I had when I bought my new truck.

I got home and realized I had 100psi in all 4 tires, figured the dealer prep kids did it.

Luckily, only drove 30 miles or so.

For the life of me, I couldn't figure out why they would do that!

 0 Comment(s)