Q: Switched to synthetic high mileage (5w-30) for the first time and have noticed power loss and faint smoke coming out of tail pipe?
Switched to synthetic high mileage (5w-30) for the first time and have noticed power loss and faint smoke coming out of tail pipe. What do you think this could be from? Engine is quieter and seems okay but ever since I switched my "get-up & go" has got up and went. Any help is appreciated
My car has 209000 miles.
My car has an automatic transmission.
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