With temps above 20*F I have about 15-18 psi. When it gets colder out I have right at 11psi. The other day it to -2*F. The truck started and held at 11psi. About 5 mins later she started dropping psi and soon hit 1psi. The truck started to stall so I turned it off right away. So later that day after the temps got to about 15*F I started the truck and it held 11psi. I took it down the road and about 10 miles later it went up to 17psi and held. When I got home it jumped down to 11psi again. Any ideas? My airdog going bad?

Mine gelled last monday on winter blend that I bought at a big chain station here in town, from now until it warms up I'll be going to the truck stops to fill up.

when temps dip below 30 i will NOT buy fuel unless it is at a truck stop, aka pilot, flying j, Travel America etc.....  i have also taken to mixing power service with the treated fuel....  no issues since started doing this....

 

as to heating the fuel in the tank, the OTR trucks have coolant heaters for their tanks that plumb in and work with the block heaters.  they keep both the engine and the fuel tank from freezing....

 

just food for thought...

Just an update here, now that the temps are way low like -10 with wind chills to -40, my filter heaters are keeping me running. The fuel psi still drops but never below 10psi. When I idle for about 20 mins the psi starts to climb back up but once I give it some throttle, it drops back down again. I am heating both filters.

Just an update here, now that the temps are way low like -10 with wind chills to -40, my filter heaters are keeping me running. The fuel psi still drops but never below 10psi. When I idle for about 20 mins the psi starts to climb back up but once I give it some throttle, it drops back down again. I am heating both filters.

Where did you get your heaters from?

For the small filter I bought it off eBay. It is one of those orange WVO heaters. On the other filter I was given a filter heater for a semi. That one is more of a fabric material vs those orange rubber pads. I have each one wired to its own fused switch in the cab.