Tire Pressure

[acsnowrider]

Nobody else had their tires filled with "nitrogen" at the selling dealership?? Mine was, and there is almost no change in pressure reading-cold or hot

 

[Dirtman]

Air is 78% nitrogen...

The difference is moisture content not the gas.

 

[acsnowrider]

Sooooo No Nitrogen? None of the independent tire places are doing this, only the Dealerships in our area. But, it really stabilizes tire pressures--My new BFG KO2's are set at 46 lbs!

 

[ericbphoto]

Sooooo No Nitrogen? None of the independent tire places are doing this, only the Dealerships in our area. But, it really stabilizes tire pressures--My new BFG KO2's are set at 46 lbs!

46lbs!!! On a Ranger? That’s like riding on concrete tires

 

[acsnowrider]

Maybe I'm still adjusted to the 04 Ranger Fx Offroad I traded in, but the ride comfort on this new one is fantastic. My pressure setting is based on the last two sets of this tire I had on the 04--Traded the unit in with 30k on the set, and the dealership thought the tires were much newer.
Current set now has 6k, ready for second rotation, and measures 15/32 tread, which is brand new measurement/spec.

 

[Dirtman]

My new BFG KO2's are set at 46 lbs!

Holy over inflated tires batman! The tires dont determine the pressure the truck does. I run 36 on the highway and even that's too much unless the road is like glass.

 

[ericbphoto]

Holy over inflated tires batman! The tires dont determine the pressure the truck does. I run 36 on the highway and even that's too much unless the road is like glass.

I’m running 28 and think that’s too high unloaded on the bumpy backroads.

 

[acsnowrider]

The tires dont determine the pressure the truck does. I run 36 on the highway and even that's too much unless the road is like glass.

Actually, tire construction does have a lot to do with pressure settings----The last two sets were ten ply rated-and my current set is eight ply rating-The factory supplied Bridgestones were half this rating. Pressure adjustments should be made on based on tread wear across, the entire tire face, over time/mileage, and ride comfort is what it is.

 

[HenryMac]

Holy over inflated tires batman! The tires dont determine the pressure the truck does.

Yeah.. kind of.... the tire type does matter also.

My 2019 Ranger came with LT (Light Truck) tires... LT 265-65R17C specifically. Door placard states 38 psi.

The same size tire, that's not a LT, is specified at 30 psi

 

[acsnowrider]

The tire type does matter also.

Exactly!

 

[Dirtman]

15 psi with 200 pounds of sand in the bed is a good pressure for me.

 

[HenryMac]

15 psi with 200 pounds of sand in the bed is a good pressure for me.

For rock crawling that sounds perfect...

 

[Dirtman]

Works good in the snow too... When it's that bad I'm never going over 20 anyway.

 

[sgtsandman]

When I ran the math on the KO2s I put on the 2011, it got 33 psi to match what the stock tire rating was at 35 psi. Being that it is a lot harder to read a dial gauge for 33 psi, I defaulted to the OEM recommendation of 35. Easier to work with, traction and ride hasn’t been hurt, and it better matches the non-stock capacity of my leaf springs.

 

[Dirtman]

I go to 8-10psi on the beach.