Which would you choose?

[reader79]

A postcard just came to our house offering my mother 4/$85 from the local Dodge dealership. For some reason my dad had her going to Jiffy Lube where they charge her $70, maybe because of the Hemi engine on her car. I think it takes synthetic oil. If the offer stands, she is going to take it. And she gets her car serviced there regularly, as it is still under warranty, and they always remind her not to use 'sub-standard oil.'

I paid $35 to the local mechanic last weekend for an overdue oil change, I had been putting it off because I hadn't driven 3K miles, but it had been almost a year since my last one.... Also got new front brakes, A/C fixed, etc. and it's going back next week for more.