[steamship]

Originally Posted by MikkiJayne

...so all the crud that builds up is purely from oil vapour!

In that case, a catch can may actually help, but only if it removed all the oil vapour, which can be quite a challenge.

This may be one of those instances where I might just try it myself, and see what the results are like. Having watched countless videos of oil catch cans in use, I don't see why anyone would want to see this crud being fed back into the engine, if they had a choice. Fair enough, it isn't standard equipment, and then becomes a serviceable item, but if it helps reduce the build up of crud over time, then it might be worth trying.

One of the names I came across for 'quality' oil catch cans was Mishimoto, and emailed them a while back, with a recommendation from them on which of their models to choose from. I'll have to do some more reading on the ProVent, but a quick Google shows them as costing around the same £120 mark.

Since the S8 doesn't get used much, I might even put it in the 4.2 D3, as it's more of a daily use car. If it functions and manages to trap a significant amount of oil, then I can contemplate adding it to the S8 as well.