1. Oil pans, oil-pan baffles, windage trays, oil pickups and differential covers may be modified or substituted with the following restrictions:

A. Addition or modification of crankshaft scrapers is not allowed.

2. Engine oil, transmission fluid, differential fluid and power steering fluid coolers may be added or substituted (including oil to coolant heat exchangers), but may not serve any additional purpose.

3. Oil accumulators and associated hardware may be installed given it serves no other purpose. If any portion of the oiling system is inside the driver compartment, the vehicle and driver must meet safety level 2 standards at a minimum.