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Posts: 37
| The genesis of this was, when getting my truck serviced and tires rotated, I asked the guy at the shop about tire pressure psi and to talk about vehicle tires and a trailer tires. Anyhow, long story a bit less long, for your vehicle tires, look inside your vehicle door for the manufacturer's recommended tire pressure psi. For trailer tires it is less clear as trailer tire pressure psi can be more variable based on weight/load.
The link below was helpful and has a chart on page 9 for trailer tire pressure. Interesting question - where do we haul our large drink and ice filled coolers, multiple rods/reels, multiple bait boxes, release tools, and all the other things we put in our boat, when we drive to the lake? The weight of these things can add up quickly and require a person to change the trailer tire pressure psi. A friend always told me to haul my gear, coolers, etc in my truck when driving to and from the lake and I do but never understood why...now I think I know why.
http://www.goodyearrvtires.com/pdfs/tire-care-guide.pdf
Note - apologize if this has been posted before, but the search wasn't working...I found it useful and thought someone else may to. |
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Posts: 1516
| I inflate my tires to the max PSI listed on the tire. Max load is also list on the tire. That number times two is the max weight for boat motor & trailer and all gear in the boat. Anyway that's how I have always done it. I have started to weigh the BM&T to make sure it is not overloaded. I get some funny looks at the truck stop. I guess not many people weigh their boats. |
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Posts: 5874
| If you have a single axle trailer, it's times 2. Tandem axle would be times 4.
You shouldn't have to constantly adjust your trailer tires when you load your boat differently. I always ran max PSI, usually 50, and have only had one tire blow out in over 30 years. That was a tire defect that caused that one. |
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Posts: 1530
| max pressure when tires are cold. another note thethe more plys the more weight. also for load rating include the trailer weight and then the boat weight.. suprizing how weights add up. |
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Posts: 131
Location: Lake St. Clair | Run all 4 tires on my trailer at 50 psi. That subject came up when I was on the phone with the trailer manufacturer about a completely different subject. Seems to be good so far! |
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| You best be running Goodyear Marathon at 5 - 10 psi over recommended pressure if your running 65-70mph. That means 55-60psi.
http://www.tirerack.com/images/tires/goodyear/Marathon_Special_Trai...
Edited by 4amuskie 5/23/2013 10:19 AM
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Posts: 1150
Location: Minnesota. | Some good info here...pertinent too.
Unlike Shep, I've had a couple blow-outs on my Ranger trailer and I'm not a go-getter with the miles. Moderate fishing guy/traveler here. I'm a bit of a paranoid though...I like to fish alone a good bit.
So, when I asked my tire guy about this issue he has said (on two diff. occasions) to under-inflate by 5 lbs or so b/c it's easier on the trailer bearings.
Hmm, if I weren't such a worry-wart it wouldn't bother me much but I've had a couple late-night blow-outs so I'd just like to know for certain.
Who to believe???
Good topic. |
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Posts: 5874
| Jeremy - 5/23/2013 6:15 PM
So, when I asked my tire guy about this issue he has said (on two diff. occasions) to under-inflate by 5 lbs or so b/c it's easier on the trailer bearings.
Who to believe???
Good topic.
Don't believe your tire guy. Tire pressure affecting bearing life? Um, no. Did he explain why he incorrectly thinks this?
He should stick to mounting and balancing only. |
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Posts: 1150
Location: Minnesota. | Shep - 5/24/2013 9:55 AM
Don't believe your tire guy. Tire pressure affecting bearing life? Um, no. Did he explain why he incorrectly thinks this?
Thanks Shep. Nope, he didn't. Just a gen. comment. I always wondered though. |
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Posts: 87
Location: Red Wing, Minnesota | Max pressure for me as well and I check them before every trip. No issues. |
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Posts: 109
Location: Spencer, Wisconsin | I perform the same pressure and tire checks as Spallgard...better to be safe than sorry......and it has never failed me yet! |
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Location: 31 | 4amuskie - 5/23/2013 10:12 AM
You best be running Goodyear Marathon at 5 - 10 psi over recommended pressure if your running 65-70mph. That means 55-60psi.
http://www.tirerack.com/images/tires/goodyear/Marathon_Special_Trai...
This over inflating trailer tires by 10 pounds is a real curveball, it's interesting that Goodyear has this bulletin out on line. Who normally researches stuff like this… and how would the general public know about it otherwise? I don't go much above 60 MPH so I'm going to stick to the 50 PSI.
Additionally; it seems like whenever I get new tires installed on about any of my vehicles and subsequently check the tire pressure, they are always underinflated slightly. I just assumed this was for a better ride because I've noticed a difference rolling with like 35 PSI when the max PSI is 50.
But on my trailers I see no benefit to not maintaining the maximum tire pressure, and have had very few issues through the years.
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Proper trailer tire psi