Tire Pressure and gas

chris4x4 · Jul 6, 2008

timmer said: ↑

Tires when inflated to either manufacturers or auto makers’ spec cost only a fraction of a cent per mile. Hardly anything that requires such a heated debate.

The far more meaningful issue at hand is the need to keep the tire pressure ay the recommended amounts. Partially because driveline metrics and because if you get into a tire related accident such as was experienced by the ford SUV's awhile back, with their highway rollovers. With such accidents having tires filled to recommended specs made it much easier to peruse lawsuits against both the manufactures of defective tires and the auto makers who purchased and resold these defective parts.

These suits not only provided some measure of recompense for the victims but a safer environment for those traveling in and around the effected vehicles.

IF the victims were not driving their vehicles with the tire inflated at the automaker or tire manufactures spec. then these lawsuits would not be as effective at forcing the respective sellers or resellers of the defective part to take the proper corrective actions.

Of course when traveling at off road speed (usually under 30 MPH) accidents caused by sudden deflation usually are not fatal and are much more often than not more than a minor inconvenience. One could argue very effectively that running at full inflation would be more dangerous than at a pressure that would be considered foolhardy to run at top highway speeds. (Say 16 PSI).

SO they answer is to run your pressure at an appropriate level for the conditions. Which during on road conditions is the pressure recommended by the auto maker who had undoubtedly spent many and much more valuable resourced determining than any one here.

Now if someone would care to question the appropriate tire pressure to be run in various off road conditions that would be much more our of our time and effort
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Tim, what you are saying is that if you have a Tacoma, and add 33" tires, because Toyota recomends 26 psi in the tires, 26 psi is good for the new LARGER tires?
The Chalk method is still more accurate.

Ridgerunner · Jul 6, 2008

chris4x4 said: ↑

Tim, what you are saying is that if you have a Tacoma, and add 33" tires, because Toyota recomends 26 psi in the tires, 26 psi is good for the new LARGER tires?
The Chalk method is still more accurate.
Click to expand...

Shoot the placard on mine says 26-NO WAY! I did it ONE TIME and my tires were sloppin all over and my truck felt like it was a lil slower! I swear I think they put a lower # so the ride on our trucks will be a little softer.

chris4x4 · Jul 6, 2008

Ridgerunner said: ↑

Shoot the placard on mine says 26-NO WAY! I did it ONE TIME and my tires were sloppin all over and my truck felt like it was a lil slower! I swear I think they put a lower # so the ride on our trucks will be a little softer.
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Excatilly. On a bone stock vehicle, with the stock smaller size tires, maybe. Once you start adding things like a topper, larger tires, tools, gear, etc., with the added weight, and larger tires, the placard on the door jamb is void.

chris4x4 · Jul 6, 2008

timmer said: ↑

Ok now that you have gone outside of the recommended tire size all bets are off..
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95% of the people here probably changed their tires to a different size

timmer said: ↑

However I would use the tire manufactures tire pressure chart that is (should be) avalible at the tire shop where you buy your tires for those pressures to be used for you vehicle in on road conditions.
You can (should be able to) also find these on the manufactures website I would suspect mostly for warranty purposes

I am not argueing against the fact that the chalk trick is a pretty darned good one for fine tuning tire pressure for shade tree types.

I would only add to it that it could be easily done for both cold tire condition and hot tire condition..
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Being that it is recomended that tires be checked when cold, that is precisly why you do the chaulk method when cold. Honestly, when dealing with air psi and temps, how practical is it to pull over and adjust your air psi every few miles as the temps go up? Everybody says to only check your tires WHEN COLD. And useing a tire chart its a fine baseline. BUT, many tires that fit a 7500 lbs. rig ALSO fit a 4400 lbs. rig. Is the psi for the larger truck aplicable as its the same size as is being used on the smaller one?

Ridgerunner · Jul 6, 2008

chris4x4 said: ↑

95% of the people here probably changed their tires to a different size

Being that it is recomended that tires be checked when cold, that is precisly why you do the chaulk method when cold. Honestly, when dealing with air psi and temps, how practical is it to pull over and adjust your air psi every few miles as the temps go up? Everybody says to only check your tires WHEN COLD.
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+1! If you are adjusting for hot tire pressure you will be refilling your tires every morning to do it all over!

chris4x4 · Jul 6, 2008

Ridgerunner said: ↑

+1! If you are adjusting for hot tire pressure you will be refilling your tires every morning to do it all over!
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True! LMAO.

luk8272 · Jul 6, 2008

Here we go again. lol. I like getting all the different perspectives.

chris4x4 · Jul 6, 2008

luk8272 said: ↑

Here we go again. lol. I like getting all the different perspectives.
Click to expand...

Ridgerunner · Jul 7, 2008

timmer said: ↑

the real bitch is loading up your tires in either the oven or the refigerator to get them to that precise level of "cold".

I mean "cold" is way too subjective a term to use here.
Click to expand...

I got ya timmer-but they refer to the mass of air that has not expanded due to 'heating up' from use inside the tire as "cold". They aren't referring to the ambient outside temperature.

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Tire Pressure and gas

#41
chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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Tire Pressure and gas

#41 chris4x4 With sufficient thrust, pigs fly just fine. Moderator

#42 Ridgerunner Well-Known Member

#43 chris4x4 With sufficient thrust, pigs fly just fine. Moderator

#44 chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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#46 chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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#48 chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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#41
chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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#43
chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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#46
chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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