Page 76 - ingenioren

Lube Filtration

Extended Service
LUBE FILTRATION Oil Analysis

the original oil grade specifications, Soot below
analysis services and these labs are typically different
3%, and the TBN number above 3. Each piece of Donaldson uses independent laboratories for oil
equipment will vary and the key is to look for trends from region to region. Each provides fast and accurate
in the analysis. If oil analysis indicates you can extend information about the status of your equipment. We
your service interval you then need to move out in only select labs and programs have have proven
steps. Oil analysis should continue at the normal laboratory techniques and covers a wide range of
service interval and in increments of 20% thereafter systems and applications.
until the analysis shows the useful life of the oil
deteriorating. Once the maximum limit on the oil Typical oil analysis service includes evaluating
is reached the change interval should be set at the the results of the tests we perform and providing
mileage of the previous sampling prior to indications detailed reports, including specific maintenance
of oil deterioration. Example: Normal service interval recommendations.
= 16,000 miles (25,000 km). Oil analysis performed
at 16,000 (25,000 km), 19,200 (30,000 km), 22,400 Vehicle owners use the data and recommendations
(35,000 km), 25,600 (40,000 km), and 28,800 (45,000 to improve your preventive maintenance, reduce
km). If oil analysis indicates problems at 28,800 equipment downtime, and reduce your overall cost of
(45,000 km) the change interval should be backed lubricants by extending your oil drain intervals.
off to 25,600 miles (40,000 km). This will allow for
variables in operation and environment.
Typical Oil Sampling Steps
Extended oil drain intervals are not without risk and • Collect the oil sample
short term cost savings benefits should be balanced with sampling device
equally with engine performance and reliability.
With all of the factors affecting the engine oil it • Complete a lab
processing form
is easy to see why OEM’s have traditionally been
conservative in setting oil drain intervals. If you think • Labeling the sample
your equipment is a candidate for EODI program, do with vehicle id, hours,
miles, etc.
some research. Check with your Filter, Engine, and
Oil manufacturer for guidance. If you’re not doing • Send the sample to
oil analysis, start a program. Review your filtration lab
package and most of all understand the potential risks • Lab returns results -
involved. If not properly implemented EODI short via mail or on-line.
term savings are offset by expensive repairs and
downtime further down the road. Always dispose of
used engine oil and filters properly.
Recommended Sampling Intervals
On-Road Engines
Diesel 10,000 miles / oil change
Gasoline 3,000 miles / oil change
LPG 3,000 miles / oil change
Non-Engines 20,000 miles / 500 hours

Off-Road Engines
Diesel 250 hours / oil change
Gasoline 150 hours / oil change
LPG 150 hours / oil change
Non-Engines 500 hours / monthly

74 • Engine Liquid Filtration www.donaldson.com