Reserve light always on

Hi,
Reserve light came on in my '84 300SD and it stays lit. Car is acting normal. All gauges show everything's ok. Tank is full. Any ideas?
Mia

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Your tank may be crudded up with algae. Needs to be cleaned out.
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73
Hank WD5JFR
"Mia" < snipped-for-privacy@gmail.com> wrote in message
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