No matter where you buy (or scavenge) your diesel, aka DERV (acronym for a diesel engined road vehicle), you need to filter out any rubbish (rust, dirt, or suspended water) that may have found its way into the fuel.
It’s not a complicated thing to do and for those who scavenge for fuel, it’s a simple process of adding an in-line fuel filter to your “extraction” method.
Only to what level of filtration?
Most OTC in line filters work round the 5 micron range. For most “grunt” type engines that’s plenty BUT you might like to look round for better i.e. 3 microns. Only there is an overhead to consider. The finer the filter the longer it takes to pass through it and the more energy it takes to force the brew through the filter’s mesh.
Why all the fuss?
Consider this, the fuel you are trying to scavenge could have been sat there for a long time or a really rough “grade”, especially if you are using heating oil, bio-diesel, or agricultural mixes.
You, trying to keep your vehicle going and feeding it with rubbish fuel, how long would you expect it to keep going?
Love your Diesel, filter EVERYTHING!
You know it makes sense.