Guys as far as Sea Foam goes, is there a maximum recommended frequency of use?
With their recommendations, 1oz per gallon means 1 full bottle for the car's 60 Litre tank.
How many KM's between uses would be recommended? Once every oil change makes sense, but I don't want to overdo it if there can be potential harm to gaskets, rings etc.. (even though their product literature says it's safe for those components).
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