Originally Posted by Mike Rainbird
It could be the oil you are using. The Castrol expands when hot, so if you fill it up to the max level, when it does expand, it goes to above the level and when Cossies do this, they dump the excess out of the breather.
Try running it at the ¾ level and see if consumption is reduced
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OK thanks Mike I'll give it a try! What oil would you recommend I use, bearing in mind my engine has done just short of 100k?!- what do you think would be a suitable one to maybe try instead of the Castrol??