I have been running wmo in my 96 powerstroke for some time ( approximately 30,000 kms). I have had no problems except when the temp drops. My question is does anyone run any kind of fuel heater? If so what kind? I have been doing some research and so far I'm leaning toward Racor filter and water separator with a heated bowl. They also make a in line heater. But I have no experience with any of it so I don't want to be throwing money away. If anyone has some advice it would be greatly appreciated.