[quote]Originally posted by BoringSilver:
[b]i would recommend nitrogen for your tyres. the good thing about
pumping nitrogen instead of normal air (i know normal air is made
up of 70 percent nitrogen) so you are asking why the f--- should i
pay for something that's free.
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Dun forget the theory and chemistry portion !! "common asked
question"
1. what if i pump compress air into my Nitrogen tyres at any petrol
station ? cos i dun have time to top up nitrogen at a
workshop.
To be lazy and save a few bucks, dun even bother abt Nitrogen !
just go for normal compress air at any petrol stations...! is
"free" after all..!
Here we go, Pressure adjustments. To maintain the advantages of
nitrogen inflation, nitrogen must be used to adjust inflation
pressures when this is necessary. Adding even a small amount of
compressed air to a tyre inflated with nitrogen will negate the
advantages of nitrogen inflation
Cooler running temperatures.
Tyres inflated with nitrogen will run cooler than those inflated
with compressed air. There can be significant advantages associated
with cooler running temperatures: The amount by which running
temperatures are reduced with nitrogen inflation compared to normal
compressed air will depend on the specific application. As a rule
of thumb, the closer a tyre is to its maximum heat handling
capabilities, the greater the reduction in running temperatures
will be experienced with nitrogen inflation when compared to
inflation with normal compressed air. The tyre's service
description describes a tyre's heat handling capabilities.
Example #1: 205/65R15 95H, 95H being the service description. The
load index of 95 indicates this tyre can carry 690kg at a speed of
H, which is 210kph, at the tyre's maximum inflation pressure. For
this example the inflation pressure used is appropriate for the
load carried, or slightly over-inflated for the load carried. In
this application, nitrogen filled tyres would only run marginally
cooler than with compressed air. The expected increase in tread
life from this marginal decrease in running temperatures would be
expected to be very small.
Example #2: 185R14C 102/100S. In this example, this tyre is not
being used as a dual set, therefore 102 load index will apply. The
100 load index quoted applies when the tyre is used in a dual
fitment. The load index of 102 indicates this tyre is rated to
carry 850kg at a speed of "S", which is 180kph, at the tyre's
maximum inflation pressure. In service, these tyres are often
over-loaded or under-inflated compared to the load carried, for a
large percentage of their life. Where these tyres are run near, at,
or at times over their maximum load carrying capacity, running
temperatures will be high. In applications similar to example #2,
inflating tyres with nitrogen would significantly reduce running
temperatures and should also improve tread life significantly
compared to inflation with compressed air.
http://www.btc.net.au/tyrecare/nitrogen.asp ...check it.
" Take care of these, and your tyres will ride more safely and wear
better, irrespective of the choice of inflation medium."
