Motorcycle Oil and Maintenance for 1990 Honda CB SC 450
The engine-oil matches for the 1990 Honda CB SC 450 contain more than one viscosity grade. Those grades describe different oil thickness characteristics; seeing both in a product catalog does not mean they can be interchanged under all conditions. The motorcycle's service instructions remain the reference for choosing between them.
There are also engine oil-filter matches for this motorcycle. Before ordering, compare the filter part number and physical fitment for the exact model. During service, follow the specified filter installation and oil-level checking procedure rather than assuming that a catalog match also confirms the fill amount.
Which synthetic engine oils are listed for my 1990 Honda CB SC 450?
Synthetic engine-oil listings for this vehicle include 10W-40, 10W-30. A synthetic listing does not by itself mean the vehicle manufacturer requires full synthetic oil.
What is the oil filter part number for my 1990 Honda CB SC 450?
The oil-filter part numbers listed for this vehicle include 24938-EA.
