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lupo tappets noisy

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hi guy just wondering if -

(1)15w40 would be okay to use on AHW 1.4 16v as tappets are noisy. previous owner did oil flush and oil change but i dont know what grade he used.

(2) also are there any rocker cover gasket fitted on this engine or is it just a sealent as engine also leaks oil a tiny amount from the rocker cover.

(3) what about the sump? is there any gasket fitted there too?


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Liqui-moly should stop noise but maybe run a slightly thicker grade oil in the engine than specified. Yes there should be a gasket on the rocker cover I believe and potentially not on the sump but there are oil additives that can stop leaks if there not that bad

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