Buying another cap (or two!) is probably the best use of my time.
A $2 part versus value of my time = no brainer.
Sometimes I just like the challenge of finishing a job 'on time and under budget'...
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Mine: 1987 MB 420 SEL - 62K (Dec 2019)
Mine:1991 MB 350SDL - 244K (Aug 2011)- Totalled 9/14/2016
Mine:1981 MB 300SD - 326K mi (July 1997)-sold
Wife's: 2008 MB C300 Sport - 92K mi (April 2009)