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How much gearbox oil Fiesta MK3 - Steveo4869
Could someone please let me know how much gearbox oil I should fill my gearbox which I have just put in as a replacement for my knackered old one (Ford Fiesta XR2i 1991 Hreg). It was sitting in my garage for about 3 months and was completely dry of oil, when the car was back on the car I filled it with 1 litre of transmission oil but am wondering is this enough?
Many Thanks
Steveo
How much gearbox oil Fiesta MK3 - mfarrow
I don't know about specific quantity, but on BC gearboxes the level must be maintained between 5mm and 10mm below the filler plug hole. For an iB5 gearbox, keep it between 10-15mm, though I think your car is too old to have an iB5 box.

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Mike Farrow
How much gearbox oil Fiesta MK3 - Dynamic Dave
The data I have for a Fiesta 1.6, 1989 to 1992, suggests that the gearbox oil capacity is 3.1 litres.
How much gearbox oil Fiesta MK3 - Dynamic Dave
In fact cross referencing with other Fiestas, most of 5 speed g/boxes appear to be 3.1 litres as well.