Q: Differential oil and spark plugs needed at maintenance?

asked by on October 17, 2016

i went to the dealer to service my can and for my 28000 mile service they said among other main things they will change my spark plugs and Differential oil which is not included in the drivers manual schedule.

so should i do it or not?

thanks a lot

My car has 28000 miles.
My car has an automatic transmission.

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