Quote:
Originally Posted by BrendenZ34
Alright so I have stored my 370z this winter and I a. Afraid the gas has gone bad somewhat. It rough idles, and doesn't sound quite right in the exhaust. Almost a little bit choppy. I saw this thread and was wondering if anyone has any idea on how to go about fixing the issue. It's a 2019 with 30k miles so spark plugs seem unlikely. There was no vacuum leaks. I was just wondering if anyone knew how to go about diagnosing that and potential fixes.
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I highly doubt the gas will go bad in 6 months. Even at 10% ethanol.
Are you parked inside or outside?
Was it a full tank?
The possibility of water in tank increases with being outside and having a less than full tank. (condensation)
I am not sure if our gas tanks have a drain plug. Someone can chime in. That would be the ideal situation, to be able to drain tank completely and start with fresh gas.
Obviously you can sample gas too and see whats going on.
Otherwise, check air intake system, moisture/oil on coils/plugs. Car sits, oil, water can creep into unwanted places. through a bottle of REDLINE S1 fuel treatment in tank, fill up, Take it for a drive first and see if problem persists.