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In this issue
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Why Your Car's Air Conditioner Leaves a Puddle Under the Passenger Side
Clear water under a parked car on a hot day is often normal A/C condensate. Learn how to distinguish it from coolant, washer fluid, fuel or a blocked evaporator drain.
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Why a Car Battery Can Test 'Good' but Still Fail the Next Cold Morning
A battery's open-circuit voltage does not tell the whole story. Cold-cranking ability, state of charge, parasitic load and intermittent connections can create confusing results.
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The Oil Level Is Rising Instead of Falling: Why Some Diesels Can Dilute Engine Oil With Fuel
An oil level above the maximum mark can be more concerning than normal oil consumption. Repeated interrupted DPF regeneration is one possible route for diesel fuel to contaminate engine oil.