Title: Piece of crap
Review: I bought this for my Mercedes diesel when Chicago dropped to -10. I installed it in the dipstick tube and plugged it in- but all I got was a little bit of smoke. There was plenty of oil in the pan- but this heater apparently burned out within 10 seconds. After 5 minutes plugged in I pulled it out and felt it- the thing wasn't even warm. Don't buy one.
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