Was always pretty pleased by the relative freedom from rust on my 92 300D....year-round car on salted roads, first in PA then RI. My mistake: I never opened up the jack point panels. All four are badly rusted. If I had been checking them all along, maybe I could have slowed progress with POR-15. So, we'll be taking a trip to my auto body shop.

Thankfully the 91 is in great shape....it never sees salt to the extent possible.

__________________
14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 158k miles
06 E320 CDI "Rutherford", Black on Tan, 177k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver on Tan, 144k mi, wastegate conversion, ALDA delete

19 Honda CR-V EX 72k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife