Garner, N.C. — Everyone seems to be looking for ways to save money at the gas pump. The Garner Police Department has taken a unique approach.
Officer D.A. Taylor spends most of his 12-hour shift on the road. When he isn't speaking with speeding drivers he has stopped, he's behind the wheel. In his job, he can't help but burn a lot of fuel.
Now, Garner police have a new secret weapon against the high prices at the pump – nitrogen. They're pumping it into their tires.
“It’s been used on the space shuttle, commercial aircraft for decades,” said car dealer David Hurd. “Nitrogen is not affected by normal cold and hot conditions, so you don’t have any fluctuation in the air pressure.”
As a result, nitrogen is reported to extend the life of a tire and provide better fuel economy.
“There’s approximately a 10 percent savings on gas mileage, and when you’re talking about 60 cars in a fleet, you’re talking about quite a bit of money over time,” said Garner Police Sgt. Joe Binns.
A local dealership was one of the first in the area to offer it in vehicles. They are donating it to the Garner Police Department free of charge.
“Anytime when we can save money for taxpayers, it’s worthwhile,” Binns said.
For Taylor, there’s a side benefit. Nitrogen is also known for providing a smoother ride.
“I can feel a big difference. The bridge we just went over, the jolt you felt then is normally about twice that amount,” Taylor said.
Garner is one of the first police departments to use nitrogen in their tires. You don't have to have a special vehicle or tires, but nitrogen does cost more than air. The local dealer charges $50 to fill tires normally.
Garner Police Riding on Nitrogen-filled Tires
Posted: Aug 16, 2007Updated: Aug 17, 2007
- Reporter: Sloane Heffernan
- Photographer: Mark Simpson
- Web Editor: Kelly Hinchcliff
Some Motorists Turn to Creative Tire Inflation to Save Gas
Monday, July 31, 2006
TOPSHAM, Maine — Many motorists seeking to improve their mileage as gas prices soar this summer are examining everything — right down to the air in their tires. And for a growing number, plain old air isn't good enough.
George Bourque of Fairfield is one of those who's driving around on tires filled with pure nitrogen, the same stuff that NASCAR racers use.
Bourque, an engineer, said he has seen a 1 to 1.5 mile-per-gallon increase since he began filling his tires with nitrogen, which is touted as maintaining tire pressure longer and resisting heat buildup on hot summer days.
"I analyze everything," he said.
Nitrogen has been used for years in the tires of race cars, large commercial trucks, aircraft and even the space shuttle.
But it is finding its way into the mainstream at a growing number of tire dealers — including Costco Wholesale Corp.
Nationwide, fewer than 10 percent of tire dealers offer nitrogen, but the number is growing, said Bob Ulrich, editor of Modern Tire Dealer magazine in Akron, Ohio. Most dealers charge $2 to $5 per tire for the nitrogen fill-up, he said. The dealers generally offer free lifetime refills.
Bourque got his tires — filled with nitrogen — in Waterville, Maine at Tire Warehouse, which has 50 tire dealerships across New England. The nitrogen was part of an installation package when Bourque bought a set of tires.
Skeptics will question how much can be gained by filling tires with pure nitrogen when the air we breathe is 78 percent nitrogen.
The differences are subtle, but important, said Steve McGrath, Tire Warehouse's vice president of marketing in Keene, N.H.
Nitrogen molecules are bigger than oxygen molecules, so nitrogen seeps out more slowly from tires than air; nitrogen resists heat buildup better than air, which contains moisture; and nitrogen reduces oxidation, which can damage the tire from the inside out, proponents say. Nitrogen is an inert gas, so there are no safety or environmental issues.
Those advantages are important in vehicles equipped with tire pressure monitoring systems, which are sensitive to changes in tire pressure, McGrath said.
With or without nitrogen, proper inflation is the key to improving gas mileage. Motorists can improve gas mileage by 3.3 percent simply by keeping their tires properly inflated, according to the U.S. Department of Energy.
In the real world, though, only 1 in 5 motorists check tire pressure regularly, according to the Rubber Manufacturers Association. Nitrogen, therefore, could have an advantage for those who don't check their tire pressure regularly.
The National Highway Traffic Safety Administration has no opinion on nitrogen, but it does encourage motorists to keep their tires properly inflated, both for safety and to boost gas mileage, said spokesman Rae Tyson. Severely underinflated tires are dangerous, especially for sport utility vehicles and light trucks, Tyson noted.
Tire experts at Consumers Union, publisher of Consumer Reports magazine, neither endorse nor object to the use of nitrogen in tires.
"Nitrogen is certainly safe to use in tires, and theoretically it does offer some benefits," spokesman Douglas Love said from Yonkers, N.Y.
For Bourque, his tire pressure remains constant — 40 pounds for his fully loaded truck — even on hot days when tire pressure normally fluctuates.
His gas mileage was about 19 mpg when he purchased his five-cylinder 2005 Chevrolet Colorado. Now, with the engine broken in and new tires filled with nitrogen, he gets 20.5 to 22 mpg depending on whether he runs the air conditioner, he said.
For tire dealers, the nitrogen generator and associated equipment typically runs between $3,000 and $12,000, Ulrich said.
Marty Mailhot, manager of the Tire Warehouse in Topsham, said the idea is catching on with consumers, who are purchasing nitrogen for tires for cars, trucks, motor homes and lawn tractors. He has even tried it on footballs and inflatable tubes pulled behind boats.
He has a retort for those who pooh-pooh the notion of paying for nitrogen when there's plenty of free air for the taking.
"I say, 'Why are you drinking that bottled water when there's a pond out back?'" he said.
Rim Guard™ News Release
Compact/Utility Growth Drives Rim Guard™ Ballast Sales
Over the past several years, the compact and utility tractor market has experienced rapid growth. These tractors often have more horsepower than their weight can effectively use. Adding ballast significantly improves stability, pulling power and efficiency by reducing wheel hop and slippage.
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Iron weights are expensive ($1-$2 per lb.) and often are located where they don’t do the most good. Rim Guard™ costs about $.28 per lb. retail. If the tractor has a front-end loader, iron weights can be detrimental to the tractor’s balance and overall weight distribution. The weight is needed in the rear to counter the weight of the loader and to maximize traction. Rim Guard is loaded in the rear tires where it is most needed. It also can be loaded in the front tires of 4WD tractors to further enhance traction and in 2WD models to reduce nose lift when pulling heavy loads. Rim Guard will lower the center of gravity, thereby increasing vehicle stability on hilly or sloping terrain and greatly enhance operational safety.
Rim Guard™ is made from an agricultural byproduct with other additives and weighs 10.7–11 lbs per gallon. Besides farm and compact tractors, Rim Guard is used in backhoes, skid steers, sky lifts, all-terrain forklifts, rear wheels on combines, and pay loaders. Even large eight-wheeled tractors will partially fill their tires with Rim Guard™ to reduce wheel slippage.
Because Rim Guard™ is totally non-corrosive, tubes are not needed, saving both the cost of the tube and the labor to install it. With Rim Guard™, you’ll never have to replace a rim due to corrosion and never have to struggle with a tire that is fused by rust to the rim along the bead. When equipment needs ballast, the best choice is Rim Guard™.
Rim Guard, Inc.
P. O. Box 41
Belmont, Michigan 49306