Quote:
	
	
		| 
					Originally Posted by MNBoxster
					
				 Hi,
 All true.  Too much viscosity and you don't have good flow.  Also, heavier Oils create more Drag on the Crank, robbing Power.
 
 15W-50 MB1 is what I use in the Esprit, but it has the much hasher Turbocharged environment to deal with, and it's a 23 y.o. car - the technologies and metalugies were different then.  And, 15W-50 is what the Manufacturer (Lotus) calls for...
 
 Happy Motoring!... Jim'99
 | 
	
 
Indeed, I am sure the Esprit can use every bit of viscosity in that bad boy!