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Message: [QUOTE="mandkole, post: 867314, member: 4630"] Ive gotten low enough to put 34-35 gallons in mine (below 1/4 tank), but when it gets that low the fuel pressure begins to twitch on the gauge caused by fuel movement in the tank away from straw (on accel or going up hill). You could tell right away the tank was getting very empty and the straw's volume easily affects pressure. on edit, warm return fuel is a fact of life and it just mixes with the cold fuel. In working on a fuel system project with PACCAR engineering (Kenworth and PB) they expected their fuel system temps to be as high as 160-175F on Cummins or MX applications when approaching empty tanks. Watch the condensation on cold environments. [/QUOTE]

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