Harley Davidson Knucklehead lubricants oil service items and Maintenance

Harley Davidson Knucklehead maintainence service items and oils lubricants oil motor transmission oil owners manual handbook torco spark plugs leads  Custom Cruisers recomend and  use Torco US Made top quality oils as many drag racers have found they do not break down like conventional oils if you use synthetic- or lose their viscosity under extreme heat with no black sludge problems- ending your engine life !havoing had a cheaper  brand in  plus degrees break down blowing the big ends on my bike-and getting recovered from Austria plus huge expense of motor rebuild of a SPUTHE  motor -  NEVER again will i use anything else Mike