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Old 08-31-2009, 12:34 PM   #1 (permalink)
Tygen1
Master EcoModder
 
Join Date: Dec 2008
Location: South Jersey
Posts: 553

Little Blue - '98 Ford Escort ZX2 Cool
Team ZX2
90 day: 44.75 mpg (US)

Big Red - '00 Ford Excursion XLT
90 day: 15.53 mpg (US)
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Thanked 45 Times in 29 Posts
New Accessory Pulley = Better MPG?

So my Accesory pulleys were makeing a racket, during their replacement I saw the timing belt pulleys were almost dead. Replaced them all and now the motor is much quieter. Anyhow, drving in to work this morning I noticed my SG was reporting a lower GPH than normal on the coasts, around 17 when it is normally around 20. My normal Idle GPH is around 17-18. By the time I got to work I was seeing the idle GPH around 12-13. I'm sure the savings is very small, but the old pulleys must have had quite a bit of friction in the those worn out bearings. I also did about 1mpg better on the way to work, however that is well within the normal variation due to traffic. We'll see if it's a consitant gain. I'm just amazed at the difference in GPH...

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