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04-12-2021, 05:23 PM
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#29 |
   
Drives: 2019 ZL1 Riverside Join Date: Apr 2020
Location: Charlotte, NC
Posts: 1,139
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Sure, if you plan to clean every 25k (or whatever) I wouldn't bother with a catch can, but that's a tiny minority. Walnut shell cleaning (the best method) isn't cheap - and all that time before 25k you are losing power and contaminating your oil.
Valve guide wear is typically more common on engines with 100+k miles, not sure how you determined bad valve guides were "the main culprit" but that is *not* true of most well cared for engines - maybe your Audi engine was junk (wouldn't surprise me). That engine, like the M cars, runs high boost, which = more blowby https://us.autologic.com/news/cleani...ection-engines |
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