Synonyms for «carbon deposits»

Synonyms for individual words can be found below.

Oh no, it can't be a big deal that some animal will burn up a billion years of fossil carbon deposits in 300 years. (dotearth.blogs.nytimes.com)
What you're describing might be due to excessive carbon deposits stuck in the throttle body. (yourmechanic.com)
The throttle body sticking and getting carbon deposits reducing air flow. (yourmechanic.com)
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