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Old 06-26-2010, 01:01 PM
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Diesel911 Diesel911 is offline
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The Engine Oil and Transmission Fluid are thicker when they are cold and it takes more energy from your Engine to circulate them.

The above added to the fact that with a cold Engine your Fuel is not burnig as well and a lot of the heat from what is burning is going to warm up you Engine and Coolant instead of being turned into powere that rotates your Engine.

If your Injectors are not within specs that causes them not to atomize as well you may see a noticalbe differance of better performance when the Engine is up to operating temp.
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