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- Check and inflate each vehicle’s tires to the recommended tire pressure rating, with air or nitrogen, as appropriate,
at the time of performing any automotive maintenance or repair service.
- Indicate on the vehicle service invoice that a tire inflation service was completed and the tire pressure measurements
after the service were performed.
- Perform the tire pressure service using a tire pressure gauge with a total permissible error no greater than + two (2)
pounds per square inch (psi).
- Have access to a tire inflation reference that is current within three years of publication.
- Keep a copy of the service invoice for a minimum of three years, and make the vehicle service invoice available to the
ARB, or its authorized representative upon request.
California's Air Resources Board says the state-wide law will save 75 million gallons of fuel per year, while also
eliminating 700,000 metric tons of greenhouse gasses. That sounds mighty impressive, but if the Sacramento Bee is to believed, that's less than 0.5 percent of what California's greenhouse-gas reduction goals for 2020. Better is the CARB estimate that
optimized tire pressure will save drivers about $12 per year (about six gallons of gas at today's prices), along with added
safety and tire longevity benefits. Those figures are based off statistics which show that vehicles lose 1% efficiency
for every 3 psi a tire is low. Testing by Consumer Reports showed little or no impact on fuel economy when tire pressure
is off by 10%, though most agree that low tire pressure will shorten the life of tires. Fewer tires in state landfills figures
to be a good thing, too.
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