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fleetguard restore

  1. General 6.0L Discussion
    Got a quick coolant flush question for ya: After installing a Bulletproof EGR delete and new oil cooler, I flushed the coolant system with Fleetguard Restore and VC-9. Since then, I've flushed it 6 times with distilled water (approx 4 gals per flush, up to the full mark on the sticker) but when...