Oil On Spark Plugs

[tiacoco]

Bought a ds3 2012 ,98000 miles 2 weeks ago from car sales garage with 1 month major component warranty.
However took it for a service and mechanic said it had oil on spark plugs but no faults showing and rest of car ok.
Asked him about plugs he said keep a eye on oil levels as oil could have been spilled when car sales changed oil 2 weeks ago or something more like oil leak some where ??? Worse case casket etc which warranty does mention caskets,pistons etc

Should I mention this to car sales as they did give a warranty or will they just fob me off as no absolutely nothing about cars.
Car runs OK starts OK etc if if didn't get service wouldn't have known. So could it be spilled oil and panic over

Any help advice on problem this could cause car and how to deal with car sales if thats a option paid by credit card so not on finance etc.
Will only be doing about 3000 miles per year

[davebro]

At 98,000 I would guess the likeliest cause is a bit of oil leaking through the valve lifters. If it's running OK the I don't think the seller can be held at fault. If it gets too bad you will have clouds of smoke from the exhaust on start-up & hard acceleration. If it's bad (like my old Merc!) it would be an MoT fail.
Keep an eye on the oil level & top up if needed.

[Ryzen]

When you say oil on the spark plugs do you mean on the electrode or the ceramic parts?...i.e has it come from the internal part of the engine or been spilt from an external source.

[tiacoco]

Mechanic said unsure if split externally or could be internal thats why am panicking what should I look for davebro said white smoke thanks davebro is there any oil sealer I can use etc

[davebro]

//is there any oil sealer I can use etc//

I don't think there's anything you can add that will correct wear & tear of the moving parts. Does it produce a lot of smoke? If not then I would just carry on & not worry.