Tyre Pressure

I'd suggest 310kPa in the front and 295kPa rear.

Stephen Fry noted that both metric and imperial are used in Britain for temperatures, so that a cold day is "below zero" but a hot day is "in the nineties!"

As for proper English, comedian David Mitchell used his Soapbox podcast to explain that he (and the Queen for that matter) is in no way offended by American English. Except for the expression "I could care less" when the opposite is meant. Fix that and all will be forgiven. And you should probably work on your swearing too.

See my sig for one way to make everyone happy about your fuel consumption (or is that fuel economy?)

 

Could possibly show the "code" to create this sig - line I really like it ....

 

In the early 1970's when Australia went metric, there was a gag of a farmer complaining about the metric system... something like, 'my cattle weigh half as much (1kg = 2.2lb), I have to drive twice as far to get to market (1km = 0.6 mile) and I use five times as much fuel to get there (1l = 0.22 Gallon (Imp))'.

 

Backyard engineers may like imperial measures so that body parts can be used for reckoning. Everyone has a metric and SAE socket set, though few cars would have non-metric nuts and bolts.

I was very young when Australia converted. By the time I started kindergarten all imperial rules had been burnt. My mum's old 1970 Ford XY Fairmont had its speedometer converted to read km against the mile marks and the odometer changed for km with a sticker indicating the mileage at which the conversion took place. I don't think that dual mph-km/h speedos were common, maybe on cars imported from Britain.

It was probably made simple by restricting multiples like deci- and Deka- to useful ones that could be related to:

• metre: milli-, centi-, kilo-
• litre: milli-, (for large amounts like tanks or dams or Sydney Harbours) kilo-, Mega-, giga-
• gram: kilo-

Hectopascals replaced millibars, so barometers read the same. Nice.

Imperial measurements that have persisted for specific purposes include:

• PSI for the pressure of a tyre or football, though kPA is also shown on tyre placards and pumps.
• Feet and inches for the height of a person. If I say that I am 195cm I get blank stares. If I say 6'5" I still get blank stares, but with dropped jaws.
• [kilo]Calories interchangeably with kilojoules. Fast food shops show energy in kilojoules.
• Stone was used a bit, mostly for old bathroom scales and junior rugby team classifications.
• Horsepower is used for modified cars, particularly those with big, American engines stuffed into them. Everyone else uses kW and N.m.
• A pint milk bottle became 600ml. Beer glasses are based on fluid ounce measures that have been rounded to metric ml. Only the uncommon and tiny 5 and 7 ounce glasses are referred as such; all other glasses are named. And a pint is 590ml.

 

Here's my answer to all of these problems. It's my English made Tyre pressure gauge. See the photos