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Old 10-26-2015, 08:21 AM
Diesel X5 35d Diesel X5 35d is offline
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Join Date: Dec 2013
Location: Maryland
Posts: 28
Diesel X5 35d is on a distinguished road
I've been putting in 2.5 gallons every 4000 to 600 miles in the passive tank. Never added anything to the active tank. It's as easy as adding windshield washer fluid. Never had a problem. Never had a warning,yet. System runs flawlessly.
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