I'm quite confident I don't need a block heater to start any of my cars in the coldest Rhode Island winter. But the heater works and the cord is installed on my 240D....so I thought why not? In terms of the heater coming on quicker, any of you notice significant benefits? I know it's easier on the engine and all...my main interest is my cold butt tomorrow morning....it will be 5F.

Thanks.

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14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 159k miles
06 E320 CDI "Rutherford", Black on Tan, 178k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver on Tan, 145k mi, wastegate conversion, ALDA delete

19 Honda CR-V EX 75k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife