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Sea Foam for misfire code [SOLVED]

I have a 2015 Volvo S60 T5 Premier Plus AWD. Very low mileage 32,000. Car runs great but when I use my Innova obd2 scanner it will say misfire cylinder 1. Plugs, ignition coil all check out fine, and it is random when I scan the car. It may read nothing and the next day will get the misfire on cylinder 1. I’m at a loss and it’s driving me crazy. I’ve always been somewhat leery of any additives, but I’m willing to try Sea Foam if you believe it won’t damage the Volvo engine and possibly help. Thank you.

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Jim D.
1 year ago

Thanks for the question, Seth.

First, Sea Foam is absolutely safe for your Volvo. It’s made with 100% safe petroleum cleaning and lubricating ingredients and does not contain any harsh chemicals, so it can’t harm engine parts or components.

Second, it’s hard to say if Sea Foam would resolve the misfire reading, but it certainly wouldn’t hurt. Regardless, it’s a great cleaner. Worth a shot.

Here’s what I’d try: Add a full can of Sea Foam High Mileage to a low tank of fuel (1/8 tank or so) and drive until almost empty before refueling. That creates a good cleaning concentration and gives the Sea Foam/fuel mixture time to run through the engine.

Another thing you could try is a Sea Foam Spray treatment through the intake. Here’s the how-to page:

Hope that’s helpful and keep us posted!