So what are the learnings for the rest of us? Carry a spare cap? How about some suggestions on a cover that could be fabricated on the spot? Aluminum foil and twist-ties? Beer can from the gutter? Plastic bag? What would you do in Phil's place?

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"Buster" in the '95

Our all-Diesel family
1996 E300D (W210) . .338,000 miles Wife's car
2005 E320 CDI . . 113,000 miles My car
Santa Rosa population 176,762 (2022)
Total. . . . . . . . . . . . 627,762
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970