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8 Posts
On 12/31/04 my dealership located in the midwest used 10W/30 oil instead of the 5W/20 suggested my the service manual. The lead technician informed his supervisor that the 10W/30 was not a problem due to the weather conditions in the midwest. I then wanted to know, when did lead technicians start deviating from maintenance specifications and not bringing it to the customer's attention before acutual performing the work. I'm having the oil changed on 1/4/05.