Hi, for a while now, under the front of my car on the ground where I park, there's been a black patch which I've ignored. Since then it's had an mot and service and all is been OK.
However, I've noticed where I pull in at home, fine tiny 'splat' marks on the ground with a rainbow effect. As a test. I left white sheet under my car over night. Checked this morning and there are two 10p coin size brown marks under the middle front of the car.
What could this be? Want to avoid taking it to a garage where I could end up paying a fortune.
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