Product Description

Modern bypass oil filter systems are secondary

systems whereby a bleed from the main oil pump

supplies oil to the bypass filter, the oil then

passing not to the engine but returning to the

sump or oil tank. The purpose of the bypass is to

have a secondary filtration system to keep the oil

in good condition, free of dirt, soot and water,

providing much smaller particle retention than is

practical for full flow filtration, the full-flow filter

is still used to prevent any excessively large

particles from causing substantial abrasion or

acute blockage in the engine. Originally used on

commercial and industrial diesel engines with

large oil capacities where the cost of oil analysis

testing and extra filtration to extended oil change

intervals makes economic sense; bypass oil filters

are becoming more common in private consumer

applications.[3][4][5] (It is essential that the

bypass does not compromise the pressurised

oilfeed within the full-flow system; one way to

avoid such compromise is to have the bypass

system as completely independent).