DARRINGTON QUARRY - ELAIS FUEL CLEAN CASE STUDY

Notes

For new, clean diesel fuel , ISO cleanliness codes typically fall in the ISO 18/16/13 range or cleaner when measured to ISO 4406 standards.

What That Means

ISO Code 18/16/13 corresponds to: o 4 μm particles : ≤ 2,500 particles per mL o 6 μm particles : ≤ 640 particles per mL o 14 μm particles : ≤ 80 particles per mL

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This is considered very clean for bulk diesel, meeting or exceeding most OEM requirements for modern common-rail injection systems.

OEM Recommendations

• High-pressure common-rail engines often require ISO 18/16/13 or better to avoid premature wear. • Some manufacturers specify ISO 16/14/11 for optimum protection, which is cleaner than most as delivered fuel and usually requires filtration at the point of use.

Reality in the Field

• Freshly delivered diesel from suppliers can often be ISO 21/19/16 or dirtier, especially if storage tanks or delivery systems aren’t perfectly maintained. • Achieving ISO 18/16/13 or lower generally requires polishing or onboard filtration — exactly what your ELAIS system is designed to do.