Blue Removal

July 4, 2025

How to Fix DEF / AdBlue Problems on Your CAT Excavator (with 4.4 Engine)

CAT excavators equipped with the popular 4.4 engine (Tier 4 Interim & Tier 4 Final) are known for their reliability...

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How to Fix DEF / AdBlue Problems on Your Hitachi Excavator (ZX130 and More)

Hitachi excavators, like the popular ZX130, are trusted around the world for their power, efficiency, and reliability. But for many...

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