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Planezoil delivery lorry.
Planezoil' was an air racing oil trademark.
History
Planezoil originated at the beginning of air racing, as formula of engine oil viscosities that mechanics used to call "plane's oil". Over time the name evolved into "Planezoil" and had became associated as quality oil.
Dottie used that oil during repairs.
Workers
Sources
- Meet the Planes: Fire & Rescue