I have a 2001 Ford Explorer sport. My sister drove it for 9 months without ever changing the oil and driving it 40 minutes to work and back. When I got my car back I took it in for an oil change and found out that the oil was thick, gunky, and didn't even look like oil anymore. They changed it and the filter and engine since has ran horribly. When in park after driving it acts like its going to die, it doesn't but it shakes and stalls like it would when a car dies.
I don't trust Jiffy lube (which is where I went for my oil change) after this because my car runs worse than before, however they did say something about needing a full engine flush and something about oil in my coolant or something haha.
My question is: Is this something serious that needs immediate attention or would back to back oil changes somewhere OTHER than Jiffy lube help? Could this be a possible clog somewhere in the oil line? And if so, where and how would I fix that. Is that serious?
I don't trust Jiffy lube (which is where I went for my oil change) after this because my car runs worse than before, however they did say something about needing a full engine flush and something about oil in my coolant or something haha.
My question is: Is this something serious that needs immediate attention or would back to back oil changes somewhere OTHER than Jiffy lube help? Could this be a possible clog somewhere in the oil line? And if so, where and how would I fix that. Is that serious?