Originally Posted by Tireman9
Yup the study shows that if people do not follow the minimum recommendation from tire companies to check your air at least once a month you may lose 1% more air pressure with air than with N2.
NHTSA did not mention the cost of obtaining N2 and I am not talking about just the charge for the gas but also the cost in time & fuel to get to a location that will sell you N2.
Have to wonder what inflations the folks at BV motorsports are running to see normal day/night temperature swings to cause a tire to "go flat'.
Again, I see nothing wrong with inflating tires with N2. I would just like one of the proponents to provide a real world cost benefit for people that maintain their tires.
Well, I have written a cost/benefit model before... The reason why there isnt one for this situation is simply the variables.
I use N2 because there is a benefit and I dont pay for it. It is offered for free where I get my oil changed as well as where I buy my tires.
A simple model would need to know:
How far did you drive
How much did you pay to fill ur tires
What your gas mileage is
(which are all different) if heard anywhere from $2.50 a tire all the way to $35 a tire
How many miles do you drive regularly
what is your gas mileage (as a car with 9mpg would get less cost benefit then a car with 40mph)
what is your vehicle weight (since increased vehicle weight creates more friction with the ground causing more temperature swings while driving, also shortening the life of the tires resulting in less benefit)
what is the temperature swings (air and ground)
....I could go on.
You are right though, there is a point where the cost does outway the benefit. If you have to drive 45 miles in your 9mpg vehicle and pay $35 a tire to get N2, it will not be worth it no.
If you have it availible at a location you already go to for something else? ofcourse. But the points in between are going to vary so much from person to person there is no point in making a model that would take up so many pages discussing variables that the people that would benefit from it wouldnt even read it...