Fuel & Filter Question
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Senior User
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Fuel & Filter Question
May be setting up a 6.9l to run as a power unit and was wondering about running off-road diesel. Q1 will the red dye be filtered out or stop up the filter faster? Q2 will it run different, more or less power and such?
Fleet Owner
Joined: Jan 2004
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From: Brentwood,CA
It runs 100% the same. Just Red and no the filter will not remove the red dye. Red dye is 100% the same as on road low sulfer fuel. It is dyed solvent red #5 while it is being filled at the fuel rack for transport.
Fleet Owner
Joined: Jan 2004
Posts: 26,007
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From: Brentwood,CA
Solvent red when burned looks black like regular fuel nothing will turn color inside.You use a reagent to test for it in the exhaust soot. This is how DOT enforces it.
Fleet Mechanic
Joined: Nov 2010
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From: Kville, ohio
Around here they dip the tanks.
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Fleet Owner
Joined: Jan 2004
Posts: 26,007
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From: Brentwood,CA
They do that also here as it is much cheaper than the 30.00 swab. But if they have a feeling you have been running red dye and the tank dip shows nothing they swab the exhaust. The reagent is very strong and even if its been months since the red dye was burned they will find it.
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