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Date: Fri, 30 Jan 2004 23:46:15 -0000
From: "**-**" <m.faulksnopsamternet.com>
Subject: Re: Service rating of turbos


"Grunff" <grunffnopsam.com> wrote in message news:bveoq3$qppnu$1nopsam52899.news.uni-berlin.de... > **-** wrote: > > > Define coked? The off bit of soot is going to be moved by any oil, fresh or > > otherwise (to a point). Wear within the Turbo's bearings isn't going to be > > reversed by switching to synthetic. > > Quite - I can't see how a turbo bearing can be coked. They always (all > the ones I've taken apart) have a light brown glaze, but certainly not > 'coked' in the sense you'd apply it to a cyl head. > > FWIW, I don't run synth, and I don't have any problems, even on my > non-water cooled 16T. I've put over 60k miles on that car so far. I use > a semi-synth Total oil which my motor factor keep in bulk. It works very > well, and is about £8/5 litres. It also keeps my seals from leaking, > which synths haven't done in the past. I use Mobil 1 0w/40 in the T16, but then thats not exactly an everyday car and when it does run regularaly see's 6500rpm repeatedly and 1.6bar for mins at a time, oil temp of 90 - 105degrees is common on a warm day. Don't really have a problem with seals dribbling as the engines apart so much most gaskets have 5K miles use ;-) The 900i gets whatevers kicking about in the garage. Boggo standard Mobil 10W/40 semi at the moment IIRC. Matt > > -- > Grunff

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