Car making a rattling sound

Hello, I'm first concerned about the engine oil used and the filter used. Proper for the vehicle and sufficient? Then I'd be concerned about the pipes used and ensuring they are properly sealed. You have multiple variables and a result that is not sounding positive. It really takes a hands on physical inspection to know what's going on. Everything else is simply a guess, good or bad. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops