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- Plano, Texas, USA
That invoice does look fishy as dealers woul include everything theyve used and done into the invoice as an official record saved in the car manufactures database. The oil used should be listed in the inovice even if the item is free. Just imagne if the engine happened to have oil related issues and theres no record of oil been changed at 4,654 miles?Sounds strictly like a dealer thing like most free oil changes are. Funny they don't have number of quarts listed. Yes, do check the condition of the oil on the dipstick. Also inquire as to what brand oil they used, hopefully it's not some cheap blend...
Be aware of those free oil changes offered by dealers! Dealers always use the cheapest bulk oil they can find and car manufactures have no power to force their dealers using their recommended oil. My Mazda dealer uses "Preferred Choice"(eek2) 0W-20 oil for standard oil change; $10 more if you want Mazda moly oil.