I'm about to refresh the oil in my A833 ( because I have no idea whats in it )  I live in Arkansas where the temps are above 80 most of the year. ( and usually 90 + during cruising weather )   My options are Lucas 85-140 ( per the FSM )  or a 90 weight ?   Thanks
	
		
			
		
		
	
				
			 
	
 
 
		 
 
		 
 
		 
 
		















