Help! Fuel rail temp high

[sawtooth1]

I was running the Spartan 75 tune and towing about 12K in the mountains and notice the fuel rail temp would go in and out of the red a bit. Seems like that was around 160F or so on the Spartan Dashdaq. Is this a problem? If so what causes this?

thanks for the help

[08stroker250]

Your fuel cooler may be low on coolant. Check the small black box above, and to the left of your degas bottle (main coolant reservoir). It has a gray cap. That should be full of coolant, or a coolant/water mix.

[Remi19]

can you monitor this on the black max