Silly diesel cap

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jecram1500

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Ram Year
2003 1500 4x4 5.7
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5.7 hemi
Not sure I would put an aluminum cap on a DEF tank.
DEF is highly reactive. All commercial dispensing equipment and the system on your truck is either plastic or Stainless Steel parts.
Metal(s) contamination will damage the SCR package.
 

jecram1500

Junior Member
Joined
Apr 15, 2017
Posts
17
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Ram Year
2003 1500 4x4 5.7
Engine
5.7 hemi
Read this:
https://www.equipmentworld.com/def-contamination-and-how-to-avoid-it/

"All it takes to contaminate a 5,000-gallon tanker truck of DEF is one-tenth of a teaspoon of a metal like copper, zinc, chromium or nickel says Luke Van Wyk, owner and sales manager of Thunder Creek Equipment. If you don’t know what a teaspoon looks like, those tiny salt packets you get in a fast food restaurant hold about a teaspoon. Now imagine one tenth of one of those stirred into a tanker truck full of DEF. Other contaminants such as iron, aluminum, phosphorous, magnesium, calcium, sodium and potassium can also ruin a tanker-full of DEF in amounts of two teaspoons or less."
 

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