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Can we talk about the actual weight of a gallon of DEF?
I was reading a service bulletin from Detroit Diesel and found out a full gallon of DEF weighs 9.1 pounds, which is heavier than I thought and explains why some of those bulk tanks on rigs sag over time.
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joseph_murray86mo ago
That Detroit Diesel bulletin is using the weight for a US gallon. A full imperial gallon is actually closer to 11 pounds.
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jake_palmer996mo ago
I remember mixing up gallons once and adding way too much oil to my old truck. That extra pound per gallon @joseph_murray8 mentioned would have made a real mess. My garage floor still has the stain to prove it. I guess that's why they put those bulletins out, for guys like me who can't keep it straight. Makes you double check the manual every single time now.
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tarac164mo ago
Wait wait wait, 11 pounds per gallon?! I had no idea the imperial gallon was that much heavier, that's wild! No wonder those old engines seem so picky about what you put in them, a mistake with that stuff would be way more catastrophic in the long run.
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