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Fuel additive

44K views 71 replies 53 participants last post by  DmaxIDThor 
#1 ·
Whats the best fuel additive for the 2006 6.6 duramax?
 
#69 ·
Does anyone use Howe's Diesel Treat out there? That's what I've been running in my diesels for the last ten years never had a issue with gelling up.
 
#71 ·
In past winters, I used the winter power service (white bottle). Among other things, it's supposed to suppress the cloud/gel point of the fuel.

This winter, I'm going to find the effects of not using that additive. Instead, I'm continuing the summer practice of using the gray bottle power service. So far, the fuel hasn't gelled up and the truck runs normally. I ran the truck to -15*F and had no problems whatsoever.

So, I'm beginning to think I may never need to use a cloud/gel point depressant ever again.
 
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