I took my son’s 2009 Sonata in for oil change and transmission drain-and-fill. (He’s busy working. I’m retired and have time, and I offer do do this kind of errand for my kids.) I went to a quicky lube place (few choices on a Sunday, and don’t worry – I did not ask them for directions and I did check that there was actually new oil in the engine).
The shop did not offer drain-and-fill. They do only flush and fill…for $99!! A quick telephone consult with my son, and we took a pass.
Looking on-line for how to do it myself (do radiators have petcocks any more, or will I have to loosen the lower hose?), I came across one video for a Hyundai that says I might have to remove an air dam under the front of the engine – lots of screws and clips. Whoa, pardner! If that’s the case, maybe a (trustworthy) shop would be right to do flush instead of drain-and-fill. R&I on the air dam could be a lot of time = $$$.
Any thoughts? Could the flush be cheaper on some cars; and on the '09 Sonata would I have to R&I the air dam?