I do have a pressure gauge to check the tire pressure when the tires are cold, but do not have a pump to refill air. If I drive to the petrol station and fill air there, would it be safe coz my car tires will be hot by then? Also, I have never filled in air before at a petrol station, how to do that, would there be anybody to assist me or any instructions?
Take your vehicle to the petrol station and ask the mechanic(or whoever is in charge) to help and explain the proceedure to you. Hope this helps ya.
check your tires at home and then figure how much air you need then when you get to the gas station put that much in. when you get to the gas station pull up to the air hose, put in 50 cents or how much it says then it will start running, twist off the cap on the valve stem, push the air hose over the stem and the air will go in the tire, check it once in awhile then stop when you get the amount of air in the tire you want, put the cap back on the stem and go to the other tires. better take several quarters with you because the pump don,t run very long.
If you drive the vehicle at surface street speeds for only a mile or two to get to the station the tires should still be considered cold, unless there's a bad misalignment, which you should really fix ASAP. Most gas stations charge for their air compressor these days, but some, like QuickTrip out West, still has free air:-) Yeay, Quiktrip! Just pull up next to the hose, making sure you're not running it over. Make sure the air chuck is on it. Sometimes those are vandalized -( Remove all your valve stem caps. This is a good time to replace those caps if any are missing or damaged. This is important as they protect the valves from crud, which could cause potentially hazardous leaks. Either put your coins in the receptacle, or just press the button to start the compressor. Go around and start filling the tires (or tyres, as it were:-)). Check the air pressure periodically as you fill them. Realize that the bigger your tires, the longer it takes to fill them to the recommended pressure. Truck tires can take a while. Motorcycle tires fill rather quickly. The proper pressure can be found in your owner's manual as well as on a sticker on one of the door jambs or in the trunk (boot). I tend to put a couple PSI higher in the front tires than that, as long as it's not higher than the maximum pressure written on the sidewall of the tire itself. I find this helps the handling and roadfeel on most cars, especially if they're front wheel drive. Remember to fill the spare too! If you even have a spare (these days too many cars don't). Now just wind up the hose out of the way of the parking lot and put all those valve stem caps on. This is also a good opportunity to check the condition and wear on your tires so you have a heads-up on if you'll need to buy any new ones soon.
