I don't see why they would start to leak. The only problem would be fatigue of the coil near the compression fittings due to oil sloshing. To avoid this I put baffles in the tank and made a bracket that surrounds and supports the coil.

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1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver

1982 300SD - 232K miles - Wife's Daily Driver

1986 560SL - Wife's red speed machine