Oil Filters

An oil filter is a filter designed to remove contaminants from engine oil, transmission oil, lubricating oil, or hydraulic oil. Oil filters are used in many different types of hydraulic machinery.

Early engine oil filters were of cartridge (or replaceable element) construction, in which a permanent housing contains a replaceable filter element or cartridge. The housing is mounted either directly on the engine or remotely with supply and return pipes connecting it to the engine. In the mid-1950s, the spin-on oil filter design was introduced: a self-contained housing and element assembly which was to be unscrewed from its mount, discarded, and replaced with a new one. This made filter changes more convenient and potentially less messy, and quickly came to be the dominant type of oil filter installed by the world's automakers. Each of our service kits includes a spin-on filter for renewing on your Land Rover or Range Rover and will vary in their design, materials, and construction details. These variables affect the efficiency, durability, and cost of the filter.

A centrifugal (sometimes called “rotor”) oil filter such as those also included in our Land Rover TD5 Service Kits is a rotary sedimentation device using centrifugal force rather than gravity to separate contaminants from the oil, in the same manner as any other centrifuge. Pressurized oil enters the centre of the housing and passes into a drum rotor free to spin on a bearing and seal. The rotor has two jet nozzles arranged to direct a stream of oil at the inner housing to rotate the drum. The oil then slides to the bottom of the housing wall, leaving particulate oil contaminants stuck to the housing walls. The housing must periodically be cleaned, or the particles will accumulate to such a thickness as to stop the drum rotating. In this condition, unfiltered oil will be recirculated.

LRSERVICEKITS.com use only the best sources for our oil filters in our service kits, such as the Mahle Oil Filters included in our Allmakes 4x4 Premium Range filter kit for the Land Rover Discovery 2 and the Mann Oil Filters included our Allmakes 4x4 PR2 filter kit for the Range Rover Sport. Both of these brands (along with the other filter brands we use) are from recognised original equipment manufacturers.