When I went to the dealership the first time, the mechanic told me that I needed a new engine. I picked up my car went to another mechanic and did an MDS delete. After I did the MDS delete the vehicle ran great for a couple of months now there’s an issue with it again. The issue was oil was fusion out so I replaced my oil pan gasket. I replaced the rear main seal then I replaced the oil pump and then I also replaced the sending unit which that was four times. After that I replaced the connector but not the wires. No I bring it back to the dealership again to a different dealership and they tell me. The same thing that the other Dealership said to me, is buy a new “engine”. No, I’m saying to them again that I did not replace the spark plugs in this vehicle for almost 3 years I have a feeling it’s time to change the spark plugs. I should’ve us replace them all the year ago but did it. so my question to you is should I replace my spark plugs and coil packs or just the spark plugs because the cool packs they last over 120,000 miles but would it be better if I just got the spark plugs and coil packs just to be safe or should I just get the spark plugs Ana this is for a Dodge Challenger RT 2012 with 140,889 miles bought the car with 72,000 miles on it and I Replace the spark plugs when I bought the vehicle because it was due for new spark plugs and since I don’t know when I should replace my spark plugs, I’ve already put an additional 70,000 miles on it in the last three years so I assume that I should get a new spark plugs again because spark plugs don’t last very long they only last up to 30,000 to 60,000 miles. So again, with my question, should I replace the spark plugs and coil packs?