Hunter e36 • Engines and Transmissions
11.8
High oil pressure Too heavy grade of oil
Dirt or obstruction in oil line
Drain oil and replace.  See engine 
manual for proper grade
Drain and clear oil system.  
Check for bent or flattened oil lines 
and replace as necessary
Sludge in oil Infrequent oil changes
Dirty oil filter
Water in oil
Drain oil and refill with oil of proper 
grade and viscosity
Replace filter
Drain oil and refill.  See your dealer 
if problem persists
Transmission shifts hard Corroded or pinched linkage Lubricate or replace linkage as 
needed