Tire Recommendation?

[Geronimo John]

On 6/22/2024 at 5:10 PM, MAX Burner said:

FYI, after upgrading to the Alcan 5-spring leafs, new shocks, and D52 axles, we increased our tire pressure from 40PSI to 45cold -

Why?

[jd1923]

3 hours ago, Geronimo John said:

Why?

I run 45 PSI highway and when boondocking on local washboard roads I reduce to 38 PSI. I was just testing our new suspension over speed bumps at 45 PSI and I could see the tires nicely compress while taking in the speed bump. 40 PSI is enough however since we are certainly running less than 7K LBS GTW.

Some have written they will lower the tire PSI because of the stiffer springs. PSI should be determined on trailer weight. This upgrade has likely added about 150 LBS in heavier parts. Running D52 axles and Alcan springs going a little over the 7K GTWR should not be a big deal. With axles, springs, wheels and tires that can handle over 10K LBS, only the Oliver frame is the limiting factor. We know a member with multiple upgrades, upgraded suspension with disc brakes, my guess is he is well over 8K LBS actual GTW.

45 PSI is a good MAX number for most. I do not believe in adding PSI as a buffer allowing notification time using a TPMS. The PSI should be adjusted for actual GTW only. On the Michelin Agilis 40 PSI gives you 7,180 LBS and 45 allows up to 7,800. 50 PSI allows for 8,360 LBS GTW. Do you need more pressure?

Edited September 10, 2025 by jd1923

[Wayfinder]

No need to discuss tires further. I just wanted to put together an easy-to-read chart of all the common tires I see that we're using on our Elite II TTs as of January 2026. Let me know if I left out any common tire.  

Hope it helps get new owners going quickly without too much "trudging" through old forum threads.  🤷‍♂️

* Always follow the inflation guidelines of your brand and model of tire.

PDF file attached.

Tire Inflation Chart for Oliver Elite II Travel Trailers

Updated: 20 January 2026
 

Michelin Agilis CrossClimate (LT225/75R16) (16" rims)

Tire Size	35 psi	40 psi	45 psi	50 psi	55 psi	60 psi	65 psi	70 psi	75 psi	80 psi
LT225/75R16	-	1650 lbs	1790 lbs	1940 lbs	2060 lbs	2190 lbs	2335 lbs	2440 lbs	2560 lbs	2680 lbs

 

Cooper Discoverer HT3 (LT225/75R16) (16" rims)

Tire Size	35 psi	40 psi	45 psi	50 psi	55 psi	60 psi	65 psi	70 psi	75 psi	80 psi
LT225/75R16	1500 lbs	1650 lbs	1790 lbs	1940 lbs	2060 lbs	2190 lbs	2335 lbs	2440 lbs	2560 lbs	2680 lbs

 

Goodyear Endurance ST225/75R15 (15" rims)

Tire Size	35 psi	40 psi	45 psi	50 psi	55 psi	60 psi	65 psi	70 psi	75 psi	80 psi
ST225/75R15	1760 lbs	1880 lbs	2020 lbs	2150 lbs	2270 lbs	2380 lbs	2540 lbs	2620 lbs	2720 lbs	2830 lbs

 

Goodyear Endurance ST235/80R16 (16" rims)

Tire Size	35 psi	40 psi	45 psi	50 psi	55 psi	60 psi	65 psi	70 psi	75 psi	80 psi
ST235/80R16	2090 lbs	2270 lbs	2430 lbs	2600 lbs	2730 lbs	2870 lbs	3000 lbs	3140 lbs	3260 lbs	3420 lbs

Here are some inflation and load examples for Elite II travel trailers (four tires):

 

@ 45 psi:

1,790 lbs x 4 tires = 7,160 lbs total weight (LT tires)

2,020 lbs x 4 tires = 8,080 lbs total weight (ST tires)

 

@ 50 psi:

1,940 lbs x 4 tires = 7,760 lbs total weight (LT tires)

2,150 lbs x 4 tires = 8,600 lbs total weight (ST tires)

 

@ 55 psi:

2,060 lbs x 4 tires = 8,240 lbs total weight (LT tires)

2,270 lbs x 4 tires = 9,080 lbs total weight (ST tires)

Tires Inflation Chart.pdf

Edited 1 hour ago by Wayfinder
Added GY ST238/R80R16

[grweber1]

Hello Oliver tire experts, Gary with hull 994 here. The old tires were at there expiration so I took off the 4 tires and brought them to discount tire and dropped them off. I had bought in advanced 4 new tires. They called me and said some that there was a mix up with the order, but they had 4 compatible ones. ( This was last fall and has not been on the road yet). So I told them to mount up the new ones, Good year endurance ST 235/80r16 Trailer tires. The Question is they are supposed to be 80 PSI, can I run a lower PSI like 55 or 60. I can not find anything on the google machine that supports a lower PSI. Did I get robbed on these tires and have to deal with the rock pounding they will produce. I also have the 4 ALCAN springs ready to go on when the Minnesota weather lets me.

[dewdev]

@grweber1

The 80 psi is the MACXIMUM pressure that the tire is reated for.

Tire inflation is based on the weight the 4 tires see. Refer to Wayfinders post above yours. 

Also OTT is not recommending 80 psi.

[grweber1]

Thanks dewdev, but I did not see a chart for for the tires I have,.Good year endurance ST 235/80r16 Trailer tires.

[John Dorrer]

On 6/9/2024 at 11:16 AM, csevel said:

The time is long overdue to replace my '17 ILOVHER tires.   I haven't traveled more than 2500 miles in the last year and have put this off long enough.  I have the original discontinued Michelins LTX MS2s in the 225/75/16 size.  I will not be buying new wheels so what are my options?  I know I put Goodyear Endurance STs on my Casita but I don' think they come in a 16s.  Thank you in advance for any help and recommendations!

According to Goodyear they come in 15 or 16.

[John Dorrer]

[grweber1]

Thanks John, so would 60 psi be safe? for a trailer tire.

[Mike and Carol]

I keep mine at 55psi.  No issues.

[grweber1]

Hi Mike, are yours truck tires or trailer tires.

[John Dorrer]

1 hour ago, grweber1 said:

Thanks John, so would 60 psi be safe? for a trailer tire.

I run our 2022 LE2, between 50 and 55 lbs. on our Cooper Discover HT3, 16" tires.  The higher you go the more jaring the ride for the trailer. Prior to 2022, Oliver was sending trailers out the door at 80 lbs. That shook a lot of electrical connections.  We run with a full water tank.

 

Edited 21 hours ago by John Dorrer
Typo

[grweber1]

Thanks John, My only concern is these trailer tires are said to not be underinflated or they can heat up and possibly blow out.

[jd1923]

Gary, the tires you purchased are just fine! ST tires are for trailers and the Oliver is a 7K GVWR trailer. LT tires have stronger tread and outer corners for the needs of a truck. Trailer tires are pulled, so do not need strength in areas for traction and steering.

Given the rocky-rutted-steep dirt road I towed today, and do so very often, I would prefer an LT tire for the Oliver. The LT tire will have stronger corners for better off-road protection. The ST tire is designed to last long and carry weight when towing.

On the highway you should not notice the difference. Go extra slow on rocky roads (I was literally under 5 MPH towing today, anyway)!

The fact that your tires are 80 profile, the taller the profile the more weight it will carry. Believe it or not, you can run on 30 PSI per the Goodyear load table. IMHO, I would run on 40 PSI and not more! 😎

Edited 14 hours ago by jd1923

[grweber1]

Thanks John, That's what I was looking for.

[Mike and Carol]

14 hours ago, grweber1 said:

Hi Mike, are yours truck tires or trailer tires.

Right now we have Cooper AT3, light truck tires, which is what I had on the truck too.  Max pressure 80psi.  I’ll be changing them out in a year or so and will go back to trailer tires and keep them at 55psi too.

[grweber1]

Thanks Mike, I think I will air down to 40 to 50 psi. Thanks to all for the suggestions. 1st trip will be to Jay cook state park here in Minnesota middle of May, Call it the shake down trip to see how the dc-dc charger,  Alcan 5 packs, and new tires goes.

[rideandfly]

17 minutes ago, Mike and Carol said:

Right now we have Cooper AT3, light truck tires, which is what I had on the truck too.  Max pressure 80psi.  I’ll be changing them out in a year or so and will go back to trailer tires and keep them at 55psi too.

Mike, are you moving from LT to ST tires?  I'm just curious what other folks with older trailers are doing.

We are currently running 16" Cooper LT class E tires at 40PSI without issues with a ready to camp weight of 5100lbs (don't remember the exact tire model without looking at them). We don't take Ollie off pavement, unless the campground is not paved. 

I'm thinking about replacing four wheels when we replace the tires next year since the original 11 year old wheels need to be refinished. Found a local shop that will probably refinish my old 16" wheels, too. 

Our original spare tire had a 16" wheel with a lower profile passenger tire installed because the larger diameter LT225/75R/16 tire would not fit in the spare tire housing. Believe Oliver fixed spare tire housing size around 2016 or 2017 so the LT225/75R/16 would fit. I replaced our spare wheel/tire with a 15" Sendel trailer wheel with the ST225/75R/15 Goodyear Endurance tire that fits in our spare tire housing. Believe Oliver is now equipping new trailers with the ST225/75R/15 Goodyear Endurance tires. 

[jd1923]

2 hours ago, rideandfly said:

We are currently running 16" Cooper LT class E tires at 40PSI without issues with a ready to camp weight of 5100lbs (don't remember the exact tire model without looking at them). We don't take Ollie off pavement, unless the campground is not paved. 

I'm thinking about replacing four wheels when we replace the tires next year since the original 11 year old wheels need to be refinished. Found a local shop that will probably refinish my old 16" wheels, too. 

Bill, good tire pressure for your weight. Your camp weight of 5100 LBS is a very low number! Don't know how you do that.

Heading out on a long trip, we tow with FWT full, The bottom of our closet floor is FULL of drink and water bottles. Closet and back cabinets pretty full of clothes. Front cabinets and kitchen drawers full of cooking equipment. Chris has extra dog food and coffee, pressure cooker, etc. under the front dinette. Pantry and fridge are certainly FULL!

Two years ago, returning from a trip our Oliver weighed right at 6000 LBS. I need to hit the scales again, when first loaded up, leaving on a long trip. My guess is our FULL weight is closer to 6500 LBS now. We are certainly more packed now, and any weight savings in lighter batteries and the much lighter Chill Cube A/C should break even with heavy MP2 inverter and other mods added. Also, D52 axles and Alcan springs are much heavier but they can certainly carry more weight! 😎

"We don't take Ollie off pavement" then ST tires are fine, and might be lower cost. I'd refinish the wheels if the shop manager believes they would restore nicely! But I prefer original equipment and restoration, where many others prefer to buy new. If you do restore, please start a thread and post before and after pics! Best wishes, JD

[rideandfly]

1 hour ago, jd1923 said:

Bill, good tire pressure for your weight. Your camp weight of 5100 LBS is a very low number! Don't know how you do that.

Heading out on a long trip, we tow with FWT full, The bottom of our closet floor is FULL of drink and water bottles. Closet and back cabinets pretty full of clothes. Front cabinets and kitchen drawers full of cooking equipment. Chris has extra dog food and coffee, pressure cooker, etc. under the front dinette. Pantry and fridge are certainly FULL!

Two years ago, returning from a trip our Oliver weighed right at 6000 LBS. I need to hit the scales again, when first loaded up, leaving on a long trip. My guess is our FULL weight is closer to 6500 LBS now. We are certainly more packed now, and any weight savings in lighter batteries and the much lighter Chill Cube A/C should break even with heavy MP2 inverter and other mods added. Also, D52 axles and Alcan springs are much heavier but they can certainly carry more weight! 😎

"We don't take Ollie off pavement" then ST tires are fine, and might be lower cost. I'd refinish the wheels if the shop manager believes they would restore nicely! But I prefer original equipment and restoration, where many others prefer to buy new. If you do restore, please start a thread and post before and after pics! Best wishes, JD

John,

Our ready to camp weight is with empty water tanks. We normally camp where we fill the FWT at the campground  when they don't have water at the site and dump the B&G tanks at the campground. We don't have factory solar charging system and now using two 105AH Epoch Lithium Batteries instead of two BB 100AH lithiums. Ollie weighs in around 5100lbs, honestly added a little weight to Ollie since we started towing with a F-350. When we towed with 1/2 ton pickups got creative to keep Ollie's weight under 5000lbs. We have the original 5200lb axles with 12" brakes & Dexter's 5 leaf springs (no 5 leaf failures yet), but I don't like Dexter's wet bronze bushings in the their springs, I like Alcan's spring bushings that are double the wall thickness compared to Dexter's spring bushings. 

If we have the wheels refinished, will start another thread about it.

Thanks,

Bill

 

 

 

Edited 2 hours ago by rideandfly

[Wayfinder]

@jd1923 and everyone, thanks for the tire information. I've updated my text-base tables to include the ST235/80R16, from my January 20th post above.  I was amazed at the weight capacity as such low pressure.  Hopefully the text-base tables are also more search-friendly.

I'm still an Michelin LT lover, with the 16", but in 8 to 10 more years if I have not changed them out again, I will certainly consider putting on good ST tires, 16 inch. 

 

The old Goodyear Marathon ST tires used to be garbage from what I heard, but they have since fixed them with the Endurance.  Not sure what years they were referred to as "China bombs". Since the Endurance started production in 2017 (research indicates), they've been much better.  

I run my tires at around 50 PSI travel temps. 

 

[jd1923]

Yeah Bill, you really have all the room you need now with the F-350! Must be a good feeling in towing prowess and carrying capacity. 

Solar panels, MP2 inverter, cables, etc. is likely 400 LBS. We had 4 LA batteries to start and now 3x 300 Ah Epoch, but lost that 30 LB sliding tray, a net savings but say 120 LBS over your smaller battery setup. 30 gallons of water is 250 LBS and Chris can pack the pantry, fridge and closet floor!

We leave full and ready always! We rarely have a first night out with hookups. We also use the Oliver facilities often when traveling, we make lunch, no service station bathrooms for us. We also like to have everything we need, be able to dry-camp for days, just in case we get stuck somewhere unexpectedly. 😎

Our older Ram 2500 has a 8800 GVWR, though it's a relatively light truck. Loaded it weighs only 7400 LBS, with 35-gal extra fresh water, camping gear, Chris and I and our 60 LB Springer! Which is crazy, since when loaded we have an extra 1400 LBS capacity (800 LBS when hitched) in this "3/4-ton truck." For 18 years, we owned a 2003 Ram 4x4 Quad-Cab Laramie with fiberglass cap (heavy), rated at 9000 GVWR. It weighed 7200 LBS empty which netted less than half the carrying capacity of our 2001. 🤣

Edited 13 minutes ago by jd1923