Engine Builders Association Bulletin on Oil Sludge

[abscate]

I'm at 160k on my 1999 and have never serviced the PCV, but have it on my radar to do soon.

I do think the 1999-on PCV system has an advantage of being warmed by coolant, so it gums up less.

This car also got conventional oil changed every 5000 miles up to 140k, then I switched to synthetic.

I also report I successfully (?) desludged a 1.8 turbo VW engine using a Product from Bell engineering over two years. This was an petroleum distillates additive used right before oil changes, with 10 minutes of idling followed by synthetic.

[cn90]

Just helped a fellow diagnose his 2005 XC90 2.5T with diesel sounding engine, see the detail below for photos of Oil Sludge!!!


http://forums.swedespeed.com/showthread ... e-a-Diesel

[Ben850]

Just helped a fellow diagnose his 2005 XC90 2.5T with diesel sounding engine, see the detail below for photos of Oil Sludge!!!


http://forums.swedespeed.com/showthread ... e-a-Diesel

Wow, that could serve as the dictionary/Wikipedia example photo.

[Atis]

There is an article about the "marketing" oil change periods where the victim was a Mini Cooper after 62k km (38k miles) and 2 (i.e. two) official oil changes. (just scroll down to the pictures, unfortunately text is in hungarian)
http://totalcar.hu/magazin/technika/2013/07/09/tonkreteszi_a_motort_a_harmincezres_olajcsere/

The official change period is 30k km (18k miles)!
The poor guy was refused to get a waranty repair as he did not stopped immediately as the low oil pressure lamp was on...

Edit: found the English version:
http://totalcarmagazine.com/tech/2014/04/11/this_is_what_kills_your_modern_engine/