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View Full Version : So when do people change out their winter tires?



ghostdog
03-18-2008, 12:49 AM
April?

Also when do the gas stations stop using winter gas?

A side note: although winter gas may give less mileage, it is considered to be higher octane than summer gas!


Here's the poop: As specified by state law, reformulated winter gas contains any number of lighter, lower-boiling-point hydrocarbons (butane, propane, etc.) that just so happen to have an excellent octane value. Added to this may be any number of oxygen-bearing ether compounds (MTBE, ETBE, ethanol) that improve emissions and also have a relatively high octane blending value.

So what's all the bad hype for? Price, for one thing "It's actually more expensive to make reformulated winter gas than normal, summer fuel, ' says Thomas Hart. Lower fuel economy is another concern.

The Truth About Winter Gas (http://www.zhome.com/ZCMnL/PICS/winterGas/winterGas.html)

jaM3ican
03-18-2008, 01:08 AM
I genrally change them late april or when the temp is stedily above 5 degrees C

RX9
03-18-2008, 01:27 AM
reposted. same Q&A
http://www.torontomazda3.ca/forum/showthread.php?t=23355

mit-gee-mui
03-18-2008, 01:38 PM
Here's also last year's thread

http://www.torontomazda3.ca/forum/showthread.php?t=16925&highlight=summer+mode



2005's thread
http://www.torontomazda3.ca/forum/showthread.php?t=9106&highlight=summer+mode