[Best Motor Oil to use on an R50]

i use to use valvoline but ever since switching to penzoil i notice the oil works alot more

 

when i change the penzoil out its black as night vs the valvoline looking like brand new when changed. this indicates that the oil is removing contaminants.

 

 

penzoil high mileage as with most high mileage oils are synthetic with additivies to prevent burn off

 

10w30 in winter

10w40 in summer

[Air Intake]

off topic but since someone already stated

 

the relocation of the factory IAT sensor into the engine bay if using an open element or gutted air box is absolutely essential

 

the ecu maps ignition timing mostly on the basis of IAT Information

 

timing is critical or you can risk detonation

 

elongate the wires and put it closest to the filter as possible

[WD21, D21, and R50 Lube Specifications]

r50 takes atf for the transfer case IT DOES NOT TAKE gear oil