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All diesel fuels are lower lubricity than they used to be (due to changes for modern low-emissions diesel engines). If you have an older diesel engine, you can
by throwawayboise 5y ago
All diesel fuels are lower lubricity than they used to be (due to changes for modern low-emissions diesel engines).
If you have an older diesel engine, you can use additives to restore lubricity, but I don't know if they are approved for use in Jet/A for a piston diesel aircraft.