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Old 11-17-2008, 08:49 AM   #39 (permalink)
Master EcoModder
Join Date: Jun 2008
Location: London, Ontario
Posts: 1,096

2k2Prot5 - '02 Mazda Protege5
90 day: 33.82 mpg (US)
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Thanked 17 Times in 14 Posts
Neal, if you start and immediately drive away, you're putting the stress of accelerating a 3000 pound car on the sidewalls of your cylinders that have no oil on them. You dohn't need to idle till it warms up (my car can idle for 30 m inutes in -25*C and it won't warm up), but you DO need to give it a moment to get your oil circulating.

Cop cars and taxis are the hardest driven cars I can think of. They are not turned off for 8-10 hours at a time, they are constantly in stop-go traffic, and they are typically in a rush. Taxis are also typically driven by people that want to make the money fast, not preserve their vehicles.
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