Industrial and Mechanical Alternatives Hydraulic Fluid Hydraulic fluid is a viable temporary substitute due to its high viscosity index. When the bar oil reservoir on your chainsaw runs dry mid-cut, the immediate concern is whether the chain will seize.
Using Hydraulic Fluid as a Bar Oil Substitute: Viscosity and Risks
An effective alternative must provide sufficient lubricity to prevent scoring on the bar rails and ensure the chain moves smoothly through the wood. However, they come with significant drawbacks; they are prone to oxidation, which causes them to gum up and harden on the bar, attracting dirt and debris.
The theory is that the viscosity of motor oil is similar to dedicated bar oil. Synthetic motor oils are slightly better but still lack the adhesion properties of commercial bar oil.
Using Hydraulic Fluid as a Bar Oil Substitute: Tips and Considerations
These oils are viscous enough to cling to the chain and provide temporary lubrication. If you are using hydraulic fluid, ensure it is clean and free of water contamination to prevent rust on the bar and chain.
More About Chainsaw bar oil alternative
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