LegacyUpNorth Posted June 20, 2017 Share Posted June 20, 2017 Took out the ignition coils and plugs to inspect after 70k km and found a little oil on the side of the boot (see pic). Looking down the plug hole (with spark plug still installed) it looks like a spark plug gasket seal wearing. So most likely a good time to do the valve cover gasket and plug seals. No biggie. When I took out the spark plug to inspect I found oil on the threads (see pic). Is this normal or am I looking at the beginning of head gasket failure? My vehicle has 160k km. I just did the timing belt, water pump, and tensioners last month. It's a 2011 2.5i CVT. oil changes done regularly using Amsoil and a Subaru oil filter. I check my oil regularly and no loss based on dipstick and I check the coolant reservoir regularly and I drop in coolant. Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
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