Oil filter systems

1. A vehicle comprising:

an engine; and

an oil filter system, comprising: a housing comprising a hollow cylinder having a convex curvature and which is configured to receive a plurality of oil filter elements disposed therein; and a frame supporting the housing, the frame comprising a first set of support arms and a second set of support arms, each support arm having a first, straight side facing away from the housing and a second, curved side having a concave curvature in one or more regions that contact the convex curvature of the housing, and

the straight side of each support arm of the first set of support arms being located in a same first plane, and the straight side of each support arm of the second set of support arms being located in a same second plane, each straight side of each support arm further comprising one or more mountings configured to support one or more sub-assemblies of the vehicle,

wherein the engine is operably coupled to the oil filter system and the oil filter system is configured to filter engine oil of the engine.

2. The vehicle of claim 1 , wherein the one or more mountings of the straight sides of the support arms of the first set of support arms couple the frame to a first frame sub-assembly supporting a first sub-assembly of the vehicle and the one or more mountings of the straight sides of the support arms of the second set of support arms couple the frame to a second frame sub-assembly supporting a second sub-assembly of the vehicle.

3. The vehicle of claim 1 , wherein the first plane of the first set of support arms and the second plane of the second set of support arms are parallel to and spaced apart from one another, and wherein the curved sides of the first set of support arms face the curved sides of the second set of support arms, with the housing being disposed between the first set of support arms and the second set of support arms and a first side of the housing abutting the curved sides of the first set of support arms and an opposite, second side of the housing abutting the curved sides of the second set of support arms.

4. An oil filter, comprising:

an oil filter element adapted to be:

fittable over an outwardly projecting step of a first oil filter mount; and

fittable on a second oil filter mount without an outwardly projecting step, the oil filter element having an opening adapted to sealably engage with a base of the first oil filter mount and a base of the second oil filter mount.

5. The oil filter of claim 4 , wherein the oil filter element is annular shaped with a cylindrical bore centered along a horizontal axis of the oil filter element, and wherein the step is linearly outwardly projecting.

6. The oil filter of claim 5 , wherein the oil filter element has a neck centered along the horizontal axis of the oil filter element, the neck fittable over the linearly outwardly projecting step and a cylindrical projecting tube of the first oil filter mount.

7. The oil filter of claim 6 , wherein the neck of the oil filter element comprises a sheet metal material.

8. The oil filter of claim 6 , wherein the neck of the oil filter element is annular with a base configured to contact the base of the first oil filter mount and the base of the second oil filter mount.

9. The oil filter of claim 6 , further comprising a ring seal, positioned vertically above the neck of the oil filter element, and coupled to an edge of the cylindrical bore and sealably engaged with the cylindrical projecting tube of the first oil filter mount.

10. The oil filter of claim 4 , wherein the oil filter element comprises a porous material, the porous material having a pore size of 12 microns.

11. The oil filter of claim 10 , wherein the porous material is one or more of a cellulose media or a fibrous media.

12. The oil filter of claim 4 , wherein the oil filter element is adaptable to extend from the base of the first oil filter mount or the second oil filter mount to a filter engagement surface of an oil filter housing.