Fuel in oil warning light is this a con?

Batewolf

Member
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Mazda 5 sport 1.6 diesel
I recently had my mazda 5 diesel serviced. A week later the warning light for fuel in oil came on. My mechanic says that he can't see how it could happen. He also says that the engine is a Ford Focus engine and that on the focus there is no FIO warning light. He wonders if it is a trick to get you to a Mazda garage and pay a fortune for an il change you don't need?
 
Sure that is not water on oil instead fuel?

That is a common warning light on diesel car.
 
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