Google / Walmart review: Complaint

I'm searching for an engine oil and Google has it listed for $18xx a gallon via Walmart. When I got to the local store it was listed as $28 a gallon and they didn't even have it in stock. When I got back in my car I tried ordering it online through the same links. Google shows it as 18 a gallon and when I go to order it I'm redirected to Walmart site where it is listed for 28 a gallon. I spent hours in traffic and $dollars on gas going from Brooklyn to green acres mall for this oil and it was advertised as a bait and switch. Please help.

Link attached. https://www.google.com/shopping/product/5410439701587506231?q=rotella+t5+10w30&hl=en&tbs=vw:l&psb=1&prds=eto:12748265512325953294_0,cdl:1,local:1,prmr:2,rsk:PC_16109467426359465206,cs:1

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