Step 4
In my (English genuine) Plastigauge kit there are two sachets of grease. One is a fatty oil based grease and the other is a mineral based grease. The combination of these two greases with the Plastigauge is intended to help with the removal of the deformed Plastigauge when you have finished the measurement.
Smear one type of grease onto the bearing shell and the other type of grease onto the crankshaft.
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