How much Sea Foam in oil of Peugeot 308 [SOLVED]

How much should I add to oil on a Peugeot 308 diesel car? Is it best change the oil after its done? Should I wait 50 or 500 miles?

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Jim D.
Jim D.
11 months ago

Thanks for the question, Michael.

Add 30mL for each liter of oil in the crankcase (roughly 1 oz of Sea Foam per quart of oil). I’d add the Sea Foam about 200 miles before your next oil change. That way the Sea Foam has time to circulate and clean, and you can drain away everything that’s been cleaned when you drain the old oil. It’s okay to leave it in there longer, though.