Does anyone know what this yellow stuff is on my oil cap? And is it a bad thing? : r/MechanicAdvice
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What could this yellow gunk be? Found on inside of oil cap of 2018 Buick Encore with just 11,000km/7,000 miles. I changed the oil when the car was brand new with fully
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Yellow goop in my air intake hose, on the oil cap | EnclaveForum.net: Buick Enclave Online Community
