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| Thread ID: 117514 | 2011-04-22 05:38:00 | Tyre pressure question | Renmoo (66) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 1196410 | 2011-04-22 12:18:00 | I had a starlet once (1989) and carried a pressure gauge in the car glove box. About fortnightly checked the pressure. I used 30 psi for the front and 28 rear. Unless I was on a trip with golf clubs etc in the rear in which case I used 31 psi rear. | Snorkbox (15764) | ||
| 1196411 | 2011-04-22 13:43:00 | It's called a car, made by a company called Toyota which make cars. :rolleyes: Here's a link if you would like to find out more: en.wikipedia.org It's an AWESOME car. Small and compact and pretty fuel efficient too. |
Renmoo (66) | ||
| 1196412 | 2011-04-22 14:13:00 | A lot of people over inflate their tyres, but then with a tank of gas costing more than a cheap tyre they may have a point. Higher pressure usually = less fuel consumption but can cause tyre wear. Anyway an average modern car runs around 28-30 psi, generally the manual suggests about 2 psi higher for open road speeds if thats what you mostly do. Reading it off the door pillar seems a good suggestion :) |
dugimodo (138) | ||
| 1196413 | 2011-04-22 23:06:00 | It's an AWESOME car. Small and compact and pretty fuel efficient too. Our local nerd converted his starlet into electric. Very cool. He also sells electric bicycles as well. |
bot (15449) | ||
| 1196414 | 2011-04-23 03:23:00 | Rule of thumb regarding tyre pressure ... if they're flat on the bottom they probably haven't got enough air in them ... :D | SP8's (9836) | ||
| 1196415 | 2011-04-23 03:43:00 | I wouldn't stress it, The gauge at the servo is almost guaranteed to be incorrect, in most cases incorrect to the point of being worthless. And even if it is correct, you have no way of knowing so don't trust it. No truer words ever spoken. If the petrol pumps measured volume as poorly as the pressure gauges measured pressure we'd have petrol prices ranging from $0.50 to $5.00 per litre! I'd whack in no less than 30. Then if there's a slow leak, and you're a tad irregular in re-checking the pressures, then you've got a small margin of overinflation to compensate for the eventual underinflated running. Overinflating also helps to seal any existing leaks around the rim. Often after getting a puncture repair the garage will leave the tyre considerably overinflated - presumably to aid in sealing the rim. I'd hate to think it was consistently a lack of oversight. However, consider the variables that influence the desired pressure. High speed running calls for a few extra psi. Low speed town use, more appropriate to the Starlet should be fine at 30. However, take a look at your tyres. On the front - wear on the outside indicates hard cornering, and a higher pressure is called for. Wear on both inside and outside of the tyre indicates underinflation. Wear in the miffle indicates overinflation. As for the rear wheels - normally a couple of psi less than the front, but the wear should be even unless you like to drift around corners. |
Paul.Cov (425) | ||
| 1196416 | 2011-04-23 04:18:00 | And wheel alignment helps too and when was the last time anyone did that. About the time they backed up their computer for some possibly. |
Snorkbox (15764) | ||
| 1196417 | 2011-04-23 05:07:00 | Tisk tisk --:lol: Maybe this Random German Starlet (www.google.co.nz 6sa%3DG%26tbm%3Disch&ei=izCxTYinN8zciAK_r42wBg) is more to Metlas liking ;) And that shows that a moderate over-inflation on a starlet is not at all harmful. |
R2x1 (4628) | ||
| 1196418 | 2011-04-23 07:07:00 | I wouldn't stress it, The gauge at the servo is almost guaranteed to be incorrect, in most cases incorrect to the point of being worthless . I've always carried my own gauge to check, at least that way I got consistent pressures, but our local BP has installed a new electronic pump which seems to actually do the job properly . You enter the pressure you want and connect to the valve . It then deflates if over-pressure or pumps up to the correct level . Seems pretty accurate to me and at least it should be consistent . Unfortunately people still drop the nozzle where they finish instead if hanging it up, then run over the damned thing so it ends up too battered to use . Cheers Billy 8-{) |
Billy T (70) | ||
| 1196419 | 2011-04-23 07:59:00 | I came across one of those new electronic pumps, very nifty in the way it completely deflated by bike tire as it tried to get a reading so it could pump it up to the designated pressure.:groan: When it was finished I got to push my bike to the BP down the road so I could inflate it.:horrified Almost as bad as the Mobile I visited, That one wouldn't stop pumping air in, and in my haste to get her off the valve was torn right out of the tyre and I got to push the bike all the way home.:illogical |
Metla (12) | ||
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