Anyone running this here? I decided to go ahead and get this for my Elgrand for a few reasons, one being the Elgrands filter is hard to find being 1" 12unf thread and second I have tons of space after removing the stock airbox.

People have been doing these as Do it Yourself jobs for years on diesels Amsoil is now selling them (way overprice) IMO.





I am using this kit with a Fleetguad bypass filter with sythetic media and Fleetguard full flow filter. Which will equal the Amsiol.


About bypass filtration.

• What is add-on bypass oil filtration?
It is a secondary filtration unit with the purpose of super-cleaning engine oil. It has high
contaminant-holding capacity and filters out the smallest particles to include sludge and
soot in special cases. It also reduces engine wear and may increase oil volume.
• Where is bypass filtration used today?
Bypass filtration is standard on all Cummins automotive heavy-duty and larger turbo diesel engines
and on Mack Applications. It has been used as options and/or standard on Caterpillar, Detroit.

Reason for doing this on a diesel.

  • Removes small particles and soot
  • Extends engine life
  • Increases oil capacity
  • Extends oil change interval
  • Reduces engine wear
Most going with this system using the higher end filters are going on average of 50000 klm between oil chanes with using engine oil testing as there go by of how well the system is working.


By-pass lube filters are designed to capture and hold small abrasive particles that pass through the full-flow filter. Though microscopic in size, these particles are a major contributor to faster wear of internal engine parts.
Any type of by-pass filter of reasonable quality will effect some reduction in engine wear rates compared to that obtained with full-flow elements alone. The more efficient the by-pass filter is in reducing the total contamination level of the lubricating oil, the more effective it will be in reducing wear rates.

Extensive testing has shown that quality element type by-pass filters in combination with full-flow filters can extend engine wear life two to three times. Further testing with the centrifugal type cleaner has shown an additional reduction in wear of 54%. It is believed that the superior performance of the centrifuge results not only from its ability to remove abrasive particles down to 1 micrometer and below but also to the extraction of carbon soot agglomerates to a far greater degree than is possible with element type filters.

A lot of post on hear always asking about the best oil but if your still using a low quality filter like VIC, and other no name Japan or China made filters then what's the point of getting good oil if it's dirty. Many OEM filters are also junk like Toyota it's what's on the inside not the outside of a filter that matters.

Basic set up but you can also mount it under hood which many do. I know many TD42's have dual filters and Pajeros 4D56 and 4M40's have a combo filter with 2 elements so basically a stacked bypass filter.



The whole oil filter quality thing has not really been covered well on the forum. So I figured it's about time.