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fuel gelling, additivies, and outside tempeartures
I am a new owner of a diesel truck. I purchased a Ford F-350 6L in August with 88,500 miles and now have 101,500 miles. I park my truck outside and use a block heater that is plugged in whenever I am not driving (when temperatures are 32 F or below). I live in the Chicago area and the temperatures have been unusually low.
In the last three weeks I have had problems with fuel gelling or ice crystals three times. The first two times the temperatures were -15F and -10F and I had driven about 20 minutes on the highway before having problems. The third time the temperature was about 5 or 10F and I drove four hours before having problems.
I was using Howe's fuel additive when I had the first two problems, then switched to Seafoam before the last problem. I have since switched to Power Service 911.
I am unclear on how low an outside temperature is realistic to drive my truck and I have seen on the forum, there are a lot of different opinions on fuel additives. I am thinking about adding a fuel line / filter heater because the temperatures appear to be slipping into the single digits and below zero for the foreseeable future.
I am interested in any feedback on outside temperatures, additives, and fuel line heaters.