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Ok so after sitting for about 2 months due to COVID drive the Smart for the fist time and noticed a oil smell. Opened the compartments and checked everything and no leaks. But when checking the coolant it was grayish.. I know usually that is a bad sign but anything special different or i should know about the Smart?? About 186k (2010 Fortwo) mostly highway. No issues starting or misfires at all.. Hoping its just a head gasket. Thoughts?
 

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Is the exhaust blue or white?
Mine has been smoking and it was the head gasket.
Thankfully no warped head or block.(it’s in the shop due to the timing chain tensioner so they are taking care of the head gasket while it’s in)
I would do a compression test if I could if it was me.
You will also want to flush out the old coolant and oil as those don’t do well when they mix.(bearings hate coolant since it shortens the life of them)
 

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Nothing wrong, at all with your cars. It’s just been sitting. You might want to change you coolant. How old it it? Does your coolant, look like a milkshake. Then you might have a bad head gasket.
 
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