tire says 44 max. How much tire pressure should be in the Winter Tire
I think they are perfectly safe! They have to be regulated by a safety agency I am sure. I am diabetic and didn't know I wasn't supposed to use one! I don't anyway because we have our Sheltie, Bud, who when he cuddles up next to you must run 400 BTU's. I also have wondered if a kid were to use one and they accidentally wet the bed what would happen. So, basically I think I am against them!
Any tire that is of the same size as originally fitted to the vehicle from the factory should be inflated to the vehicle manufacturers recommendation. This is typically found in the owners manual or on the Vehicle Information Tag inside the drivers door frame (but carefully hidden in other spots on a few vehicles). Says so right on the tires sidewall (read the fine print) and on the web site of the company that built your winter tires. If 30 psi is what the vehicle manufacturer recommends and if you have not changed tire sizes for winter, then 30 is what you go with. Tire pressures should be set cold, preferably in the morning and before driving any significant distance. An increase in pressure is normal during extended driving.
first, 44 psi is pretty high for a commercial car tire, sounds more like a truck tire. when you put less air in a tire you will have a softer ride, but it is a little harder on the sidewall because it flexes more, and you loose a little fuel economy because a nice round hard tire rolls easier than a soft one. the rating on a tire is a maximum pressure, the idea is for the tread to be flat on the surface, to get maximum traction and tread life, too much pressure and the center will baloon out and cause uneven, heavy center wear, too little pressure and the center will push in causing uneven heavy outer wear. this being said, you can see what the affect of weight has on how the tire sits, more weight, the tire will squish causing heavy outer tread wear. this is why this tire may be best at 44 psi on a heavy pickup, but on a light car 30 might give you the same footprint. i would never go over the tire recommendations, but start with the car's suggestion, look at the tread from time to time, if the grooves are showing heavier center wear, take a couple pounds out, if it looks like heavy outer wear, add a few. the car company is giving specs for the tire they put on the car, it may not be exactly right for the tire you buy later, same thing goes for the tire company, they don't know the wieght of your car, it is a generalization.
For- during the day time. Against- in the evening time. I have one, but used it 3 years ago. I have cats and one of them sleeps with me in the evening. So, I haven't used the electric blanket.
It depends. If you're driving alot on the highway at speed, 35 PSI would be more appopriate than 30. If you're doing a lot of stop and go, 30 is good. The reason you keep the pressure up is because the tire gets hot and begins to wear faster when there is less air in it. This extra drag on the road is what causes reduced gas mileage. A tire with more air in it on the highway leaves a smaller foot print because its not sagging and won't heat up as bad, so there's less drag on the road. I go no lower than 35. If you're a drag racer in the heat, you want more like 17-20 PSI, but if you do autocross or drifting you want your PSI at 40-45. Honestly, anything between 25 and 40 is acceptable, but it really depends on what kind of driving you do. Oh, and by the way; those tire pressure vs. gas mileage tests are funded by big oil. So I wouldn't trust their results too much anyways.
