Skip to content
Crew Chief Logo

BMW K 100 RS

Maintenance specs for 1 variant of the BMW K 100 RS — from 1985 to 1992.

1985–1992 BMW K 100 RS

987cc Liquid-Cooled Inline-Four, SOHC (K 100) · Shaft

90 hp / 67 lb-ft

Engine Oil

Weight20W-50
Capacity4 qt
Shop 20W-50 oil

Transmission

Type5-Speed Manual
FluidSAE 80W-90 GL-5

Coolant

TypeEthylene Glycol 50-50 mix
Capacity2.6 qt
Shop coolant

Brake Fluid

TypeDOT 4
Shop DOT 4

Differentials

Rear fluidSAE 80W-90 GL-5

Fuel

Tank6.3 gal
TypeRegular 87

Tires

Front100/90-18
Rear130/90-17
Pressure (front)32 PSI
Pressure (rear)36 PSI
Shop 100/90-18 front tiresShop 130/90-17 rear tires

Service Intervals

Oil change6,000 mi
Trans service12,000 mi
Coolant flush12,000 mi
Brake fluid12,000 mi
Spark plugs6,000 mi
Timingchain (no scheduled replacement)
Air filter6,000 mi