Bearing Clearance and Oil Viscosity Explained
The relationship between bearing clearance and oil viscosity is a delicate balance. Read on for more information on how to get it right!There are some fairly famous duos in the entertainment industry – Abbott and Costello, Rogers and Hammerstein, and Batman and Robin among the more illustrious. So it may not be much of a stretch of the imagination for an engine guy to include the pairing of bearing clearances with oil viscosity as a duo you should become acquainted.

The typical rule that most engine builders follow is that bearing clearance establishes the viscosity of the oil to use within a given oil temperature range. Generally, the tighter the bearing clearance, the lower the viscosity the engine can use while wider clearances require thicker oil. But there are plenty of variables that come into play that are worth investigating.

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