AMSOIL Oil Analysis

Diesel Fuel Contamination Test

The Diesel Fuel Contamination Test Kit tests for water, sediments, and aerobic bacteria. KIT10 includes 32-oz. container, UPS pre-paid shipping label, sample form, and instructions.

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Product Code:
KIT10-EA
Category:
AMSOIL Oil Analysis

Available sizes

Product code Package size Unit of measure
KIT10-EA One Each

Diesel Fuel Contamination Test Kit

The Diesel Fuel Contamination Test Kit (KIT10) is the AMSOIL Oil Analyzers diesel fuel contamination test, used to confirm or rule out water, sediment, and aerobic bacteria in a diesel fuel sample. The kit ships with 32-ounce sample container, UPS pre-paid shipping label, sample form, and instructions.

The 32-ounce container size is sized for the contamination test panel, which is sensitive to sample volume. Smaller sample volumes can produce false negatives on aerobic bacteria population.

Tests included with this kit

How to take and ship the sample

  1. Run the equipment to bring the diesel fuel to operating temperature.
  2. Pull a representative diesel fuel sample directly from the tank or fuel filter housing into the supplied 32-ounce container.
  3. Cap and seal the sample container, label it with equipment, fluid, hours or mileage, and date.
  4. Complete the included sample form with vehicle and lubricant details.
  5. Place the container, the form, and any documentation in the supplied or sender-provided shipping packaging.
  6. Ship to the lab address printed on the form. Reports are typically returned by email within several business days of lab receipt.

How the report is used

Oil Analyzers Inc. returns a written report covering the results of every test in the kit, plus an interpretation that flags any value outside normal limits for the equipment type and fluid in service. Reports identify wear-metal trends, contamination sources, additive depletion, and viscosity drift. The report is the basis for deciding whether the lubricant has remaining service life, whether the drain interval should be lengthened or shortened, and whether the equipment shows early signs of internal wear.

Documenting the equipment, the lubricant, the operating hours or mileage, and the date with each sample lets the lab build a trend over time. A single sample is a snapshot; trended data across several samples is what reveals slow shifts in wear-metal levels, contamination, or additive consumption that single-shot testing can miss.

Order the Diesel Fuel Contamination Test Kit

The KIT10 kit is sold individually, in cases of 50, and in cases of 100 (where the case format is offered for the kit family). AMSOIL products are backed by the AMSOIL Limited Liability Warranty. Confirm the right kit for the sample type through the AMSOIL catalog and the AMSOIL Vehicle Lookup Guide, then order the Diesel Fuel Contamination Test Kit.

Frequently asked questions

What samples can this kit be used for?

This kit is for diesel fuel samples only. Engine oil and other lubricants use the standard Oil Analyzers kit (KIT01, KIT02, or KIT06); coolant uses KIT09.

What is the difference between the standard kits and the value kit?

The standard kits (KIT01, KIT02, KIT06) include the full lab panel: 24 metals by ICP, percent fuel dilution, percent soot, water by crackle, viscosity, and Base Number or Acid Number. The value kit (KIT14) is a less expensive entry-level panel covering 24 metals by ICP, viscosity, and Base or Acid Number, intended to answer the simpler question of whether the oil should be changed. Owners and shops running an extended-drain program generally pick a standard kit; owners doing periodic spot checks generally pick the value kit.

What is the difference between the consumer and commercial kits?

Commercial kits (KIT15 Failure Analysis, KIT16 Maintenance Improvement, KIT17 Drain Interval Improvement) are sold to commercial accounts and include access to Oil Analyzers Inc. technical interpretation tied to the program goal (root-cause investigation, ongoing maintenance, or drain-interval extension). The standard consumer kits (KIT01, KIT02, KIT06) deliver the same core lab data without the program-specific commercial reporting layer.

Which kit ships with which shipping option?

KIT01 ships with a USPS postage pre-paid label, KIT02 ships with a UPS pre-paid label, and KIT06 ships without a shipping label so the sender supplies the carrier. KIT09 (coolant) and KIT10 and KIT11 (diesel fuel) ship with UPS pre-paid labels. The commercial kits (KIT15, KIT16, KIT17) and the value kit (KIT14) ship without a shipping label.

How long does the lab take to return results?

Lab turnaround is typically several business days from receipt of the sample. Total elapsed time depends on the carrier transit time on the chosen shipping option. Commercial accounts that batch samples through a courier or a regional shipping center should plan for additional transit days versus a single sample on a UPS pre-paid label.

Does AMSOIL recommend a routine sample interval?

For passenger vehicles on extended-drain AMSOIL synthetic motor oil, sampling at the next-to-last interval before a planned drain provides a useful baseline. For commercial fleets and equipment, sampling at every drain or at fixed hour-based intervals is the standard. The Oil Analyzers report identifies whether the chosen interval is appropriate for the equipment, the duty cycle, and the lubricant in service.