Tire Pressure

[jstol3]

I do not drive a hybrid. I'm looking for some discussion of how to increase mileage in a conventional automobile. When I bought the car it had tires rated at 32psi. I now have tires rated at 44psi but am only carrying 40psi due to car manufacturer specs. How much pressure can i safely carry in these tires? Can anybody help?

Thanks for any replies!

[mpg]

How to Save Money at the Pump
Use MPG-CAPS(TM) as Part of Your Total Car Care Regimen

ALTAMONTE SPRINGS, Fla., June 14 -- Everyone is looking to save money on their gasoline spending with the cost of commuting, running errands, or vacationing by car rising sharply with higher gasoline prices. With the summer driving season here, there are some easy things consumers can do that will go a long way in helping their cars run more efficiently and use less gasoline.

Automotive expert and certified mechanic Tom Eaton offers a number of simple car care tips that can ease the pain at the pump and improve vehicle performance:

  *  Change the air filter regularly. A dirty filter can lower gas mileage.

  *  Maintain the recommended level of air pressure in the tires. Drivers
     can lose two percent of fuel economy for every pound of pressure under
     the recommended pounds per square inch.

  *  Drive at 55 mph. Tests have shown that a car driven at 65 mph will use
     17 % more fuel than one driven at 55 mph.

  *  Fill up early in the morning. The afternoon sun can heat and expand the
     gas in the station's fuel tank so drivers get less for their money.

  *  Use only the grade octane listed in the owner's manual. Higher octane
     gas does not make a difference in the miles per gallon
There are also a wide range of fuel economy products that have flooded the market since gas prices started to rise -- everything from magnets to gas pills to filter devices.

"Most of these products simply don't work. The only product that I have found effective is MPG-CAP(TM) marketed by Fuel Freedom International," cautions Mr. Eaton. "I'll admit I was skeptical at first, but I've used MPG- CAPs and have seen how they not only significantly reduce emissions, but also improve gas mileage and even reduce knocks and pings in the engine when used properly."

MPG-CAPs are an organic engine conditioner that improves an engine's internal combustion process providing lower emissions, better gas mileage, and better fuel economy. For best results, two MPG-CAPs should be used for the first two tanks of gas (for vehicles with 12-22 gallon tanks) which allows the micro-thin coating to develop. After that one tablet is used to maintain the full benefits of the product. MPG-CAPs are available for $2 per caplet

[Cotati]

jstol3,

I drive a 2007 HCH and have been running my tire pressure at 50 psi for the last three months.  I belive that most of the safety issues with tire pressure would be at lower than spec psi.  Higher than spec psi will lead to premature wear in the center of the tread and a rougher ride due to harder tires.  I also notice a lot of road noise inside the car but have read that this is a problem with the HCH anyway.  The tires also make a lot of noise in hard cornering but I have not noticed any loss of traction.  In Phoenix using my ac a lot because of the summer temperatures I am running about 49 mpg with careful driving.  I expect to do a lot better in the winter when I can leave the ac off.

Regards,

Cotati