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Old 03-24-2009, 11:26 AM   #24 (permalink)
Deezler
Master EcoModder
 
Join Date: Apr 2008
Location: Michigan
Posts: 261

Bio Deezler (sold) - '03 Volkswagen Jetta GLS TDI
90 day: 50.78 mpg (US)

The Beast. - '03 GMC Sierra 2500HD SLT
90 day: 12.86 mpg (US)
Thanks: 0
Thanked 36 Times in 22 Posts
Well,

One important note: DON'T RE-USE THE FREAKING ORIGINAL O-RING!

My new thermostat didn't come with an o-ring. The stock one looked ok, so I figured what the heck, it's the weekend (dealer closed), my car is torn apart, lets get this thing back together. The o-ring seemed a little loose, but well, it sealed for a week of driving.

Then I get home from Colorado to find my car is scary low on coolant in the airport parking lot. With the bottle of water I had on me, I limped her home. The new o-ring was much smaller and tighter. The original one must have slipped out on install and was horribly mangled. I can't believe it ever sealed at all.

All fixed now. Half way through this tank its looking very promising for FE benefits. I am tempted to re-fill early just to find out. Plus diesel is now finally below regular at the pump!
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