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Garage and vehicle workshop · GV-32

Oil Analysis Sample and Results Log

A free printable oil analysis log: every sample with its meter reading and hours on the oil, then the lab's wear metal, contamination and condition results.

First page of the Oil Analysis Sample and Results Log — Turn single lab reports into a trend you can read, sample after sample, on one machine. A rising wear metal or a trace of coolant is far easier to spot against its own history.
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2 pages. Choose your paper size — both versions are laid out identically, so neither one gets shrunk to fit.

Print it and write on it

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The fillable versions have real form fields — open them in any PDF reader, type into them and save. Printing help.

What this sheet is for

Turn single lab reports into a trend you can read, sample after sample, on one machine. A rising wear metal or a trace of coolant is far easier to spot against its own history.

Who it is for

Fleet engineers, plant owners, hauliers and anyone sending oil samples from an engine, gearbox or hydraulic system to a lab.

How to use it

  1. Use one sheet per machine and compartment, and write the oil, the lab and the sample point at the top.
  2. Number each sample and log it on page one with the meter reading and the hours on the oil.
  3. When the report comes back, copy its figures onto the same line number on page two.
  4. Every few samples, compare them and write what the trend shows and what was done.

What is on the sheet

2 pages, in this order:

Page 1

Printed under the title: Every oil sample from one machine or compartment, with the meter reading and the hours on the oil, then the lab's results on page two, so a rising trend shows up before a failure does.

The lab sets the limits; you watch the trend. No alarm limits or normal readings are printed. The lab sets its own limits and rates each sample, and every machine has its own wear pattern, so the trend across several samples tells you more than any one result. Take every sample the same way, from the same point, so the results can be compared.

Write-on lines: Machine or vehicle · Serial, fleet no. or reg · Compartment sampled · Oil brand and grade · Laboratory · Sample point and method · Interval you sample at · Meter unit

Samples taken — the sample number links each line to its results on page two

Table, 12 rows: Sample · Date · Meter · On oil · Oil added · Taken by · Sent · Lab ref. · Report · Notes

Page 2

Lab results — copied from each report; cross out a heading and write your own if your lab reports others

Also printed: Elements, as the lab reports them · Contamination · Condition

Table, 12 rows: Sample · Fe · Cr · Al · Cu · Pb · Si · Na · K · Fuel · Water · Glycol · Visc. · Soot · Rating · Action

Trends and actions — what several samples show together, and what was done

Table, 7 rows: Date · Samples compared · What the trend shows · Action taken · By

Questions

Why does the sheet not say what readings are normal?

Labs set their own limits, and they change with the machine, the oil and the compartment. Every engine also has its own wear pattern, so the useful thing is how its own figures move from one sample to the next. The lab's rating goes in its own column.

My lab reports different elements. Can I still use it?

Yes. The column headings are the elements most reports include. Cross out any you do not get and write in the ones you do, then keep the same columns for every sample.

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